Workplace Investigations

Mainly, the Occupational Safety and Health Act (738/2002). In addition, the following also have relevance in connection to a workplace investigation: the Employment Contracts Act (55/2001), the Criminal Code (39/1889), the Act on Occupational Safety and Health Enforcement and Cooperation on Occupational Safety and Health at Workplaces (44/2006), the Act on Equality between Women and Men (609/1986) and the Non-discrimination Act (1325/2014). In addition, the employer's own policies must be taken into consideration while conducting a workplace investigation.

There is no specific legislation, guidance or policies covering investigations in the workplace. Issues such as the Personal Data Protection Law, invasion of privacy, and infringement of freedoms may arise regarding the related parties, subjects, methods, and results of investigations. In addition, court decisions have stated that "when there has been a violation of corporate order, an investigation of the facts may be conducted to clarify the nature of the violation, issue business instructions or orders necessary to restore the disturbed order or take disciplinary action against the violator as a sanction”. The investigation or order must be reasonable and necessary for the smooth operation of the enterprise, and the method and manner of the investigation or order must not be excessive or restrain an employee's personality or freedom. In such a case, the investigation may be considered to be illegal and may constitute a tort.

There is no legislation on this area in Poland. However, employers implement internal policies that provide for workplace investigation rules to fulfil certain legal obligations, including those arising directly from labour law.

Based on the currently binding provisions of labour law, an employer must counteract unwanted behaviour in the workplace (eg, bullying, discrimination and unequal treatment). To fulfil this obligation, employers implement internal policies that provide a framework for reporting misconduct and conducting internal investigations. They may freely design the rules of such investigations, within the constraints of their policy. Therefore, it is recommended they create the policy based on the following:
 

• it should be possible to effectively report the misconduct;
• there should be more than one way to report misconduct;
• anonymous reporting should be allowed;
• an investigation committee should be appointed and be objective;
• rules on excluding persons with a conflict of interest from conducting the investigation should be provided; and
• the report from the investigation should be prepared and signed by all persons participating in the process.

However, work on a bill on whistleblower protections is in progress (the Draft Law). The Draft Law will not determine the rules of workplace investigations but it will force employers to implement a whistleblowing procedure and follow-up on recommendations in the case of a report, including initiating an internal investigation where appropriate. Whether an internal investigation is initiated depends on the assessment of a reported irregularity by the employer.

In addition, employers (especially those that are part of an international group) often already implement internal policies on whistleblowing management and internal investigations. Employers often base their policies on guidelines issued by relevant (usually international) organisations.

The Labour Protection Act B.E. 2541 (1998) (LPA) is the key legislation governing the relationship between employer and employee in Thailand. The LPA set out a minimum standard for the protection of employees’ rights, as well as a mechanism for suspension from work for an investigation.

The LPA requires any employer having ten or more employees to prepare work rules in the Thai language and the work rules require an employer to prescribe a procedure for the submission of grievances that would normally include the process for investigations in the workplace. Therefore, the work rules are the main guidance and policy that govern a workplace investigation. In some cases, an employer may have a whistleblowing policy allowing whistle-blowers to submit complaints of illegal or improper activities to the employer. The whistleblowing policy will also prescribe the procedures for investigating in workplace reflecting the complaints submitted by whistle-blowers.

When the employer becomes aware of possible misconduct, the employer must commence an investigation immediately, in practice within about two weeks. The information may come to the employer's knowledge via, for example, the employer's own observations, from the complainant or their colleagues or an employee representative.

The trigger for an investigation in the workplace may be:

• when an employee makes a report (eg, a report of harassment, a report of misconduct by another employee, etc);
• when an investigation is conducted by the Labour Standards Inspection Office or another regulatory agency;
• when a criminal or illegal act is discovered in the workplace; or
• when an internal audit conducted by the company reveals a problem.

There are no legal requirements in this respect – it depends on the internal policies or practices at a given working establishment. Based on our experience – an internal investigation usually commences with a preliminary assessment of a reported irregularity. If the preliminary assessment leads to a conclusion that a reported situation may be an irregularity, an investigation is launched by appointing a commission or team that conducts the investigation or selecting an investigator. Then, a plan of investigation is established. Depending on the circumstances, the investigation plan may involve a collection of documents or files, their analysis, and interviews with a victim, witnesses or a subject (although the procedure depends on the type of case, internal rules and practice). At the end of the process, the report is prepared by the commission or team with facts established during the process, recommendations, and other suggestions as to the investigated issue.

Usually, a complainant submitting a grievance to the company would be a trigger for proceeding with a workplace investigation. The LPA does not specify when a workplace investigation should commence but it is subject to the employer’s work rules and regulations, including the whistleblowing policy, as the investigation usually commences after an employee or a whistle-blower has filed a complaint to the employer. In some cases, there might be a whistleblower and the start of the workplace investigation would be subject to the whistleblowing policy and the employer’s discretion. Also, if a questionable transaction or activity is detected, fiscal audits may be the source that triggers a voluntary workplace investigation.

There is no legislation on temporary suspension in the event of a workplace investigation or similar. In some situations, the employer may relieve the employee from their working obligation with pay for a short period.

Court precedent states that a valid requirement for a stay-at-home order is it “would not be considered to put employees at a legal disadvantage (deprive them of their rights and imposes obligations on them), except in exceptional cases where employees are legally entitled to request work, unless there are special circumstances such as discrimination in salary increases and the like." (Tokyo High Court decision 25 January 2012, All Japan Mariners' Union). Therefore, it is considered possible to order the employee to stay at home during the investigation period if necessary. Some companies stipulate in their work rules that they may order employees to take special leave or stay at home when an incident occurs that could be the subject of disciplinary action.

In principle, the payment of salary in full during the stay-at-home period is required. However, work rules may stipulate that an employee will not be paid during the investigation period, and in cases where the employee is clearly responsible and it is inappropriate to allow the employee to work (eg, where it is almost certain that the employee has embezzled money on the job), the employee may be ordered to stay at home without pay. In addition, if the work rules stipulate that an absence allowance under the Labour Standards Law (60% or more of wages) must be paid for the stay-at-home period, such an allowance may be paid under the said rules.

Polish law does not provide for the suspension of an employee. Instead, an employer may agree with an employee that he or she will be released from the obligation to perform work during a relevant period of investigation (with the right to remuneration). The employer may not do this unilaterally, unless the employee is in a notice period. As an alternative, which is more common in practice, the employer may force the employee to use outstanding holiday leave (subject to limitations provided by law) or the parties may mutually agree on the use of holiday leave or unpaid leave (if the employee has already used his or her holiday entitlement in full).

While an employee is being investigated by the employer, the LPA permits the employer to suspend that employee from work for the duration of the investigation, provided that the suspension can only be made when permitted by the work rules or an agreement related to the conditions of employment. Also, a suspension order must be made in writing and specify the offence and period of the suspension, which may not exceed seven days. Note that the employer must give a written suspension order in advance to the employee before the work suspension.

As aforementioned, the LPA only permits the employer to suspend the employee under investigation from work only for seven days. During the interim period of the suspension, the employer must pay the employee at the rate indicated in the work rules or the agreement reached between the employer and the employee, which must not be less than half of the employee's wages for a working day before his or her suspension. If the employer determines that the employee subject to investigation is not guilty following the outcome, the employer must compensate the employee for outstanding wages from the date of suspension with 15% interest per annum.

In some complicated cases, a workplace investigation does not conclude within seven days, and, in which case the employer should consult with a legal advisor.

The employer must conduct the investigation, but the actual work can be done either by the employer's personnel or by an external investigator, for example, a law firm. Either way, there are no formal criteria for the persons executing the investigation; however, impartiality is required from the person conducting the investigation

There are no specific qualifications or requirements for an investigator. In many cases, the investigation is handled by a department or employee as deemed appropriate by the company. In some cases, an outside attorney may be asked to handle the investigation. Also, when it is a serious matter for the company, a third-party committee may be formed and commissioned to conduct an investigation.

However, under the revision of the Whistleblower Protection Act, which came into effect in June 2022, entities employing 300 or more employees must designate a person (whistleblower response service employee) in charge of accepting internal whistleblowing reports, investigating internal whistleblowing reports, or taking corrective measures as a whistleblower response service provider. Entities with less than 300 employees must also make an effort to do the same.

The person designated as a whistleblower response service provider must not divulge the name, employee ID number, or other information that would enable whistleblower identification without a justifiable reason. Criminal penalties (fines of up to 300,000 yen) have been established for violations of this confidentiality obligation.

There are no legal requirements in this regard but it is good practice if the team of investigators or individuals who deal with the case consists of:

• a person who has specific knowledge in a given field (concerning the violation);
• a member of the HR team; and
• a lawyer (it is recommended to engage an independent, external lawyer who can maintain the objectivity of the investigation, especially in complex matters or where a conflict of interest arises or may arise).

It is crucial that the investigators are independent (and they must be allowed to act independently).

Also, certain personal features are useful (eg, the ability to objectively assess a situation, empathy, and managing skills).

The employer should conduct a workplace investigation on its own; however, an outside firm experienced in interviewing witnesses and assessing the credibility of evidence may also be appointed to assist with the workplace investigation.

There is no minimum qualification or criteria provided under Thai laws. It is worth noting that anyone who has been accused of misconduct or potentially has a conflict of interest should be excluded from any role in the investigation. This is to avoid a challenge from the subject employee that the investigation was not conducted fairly.

The employee does not have a legal right to stop the investigation. The employer must fulfil its obligation to investigate the alleged misconduct.

There are very few cases in which an employee subject to an investigation can file a legal proceeding to have the investigation stopped. Theoretically, an employee may be able to file a lawsuit or a provisional disposition to stop the investigation if he or she has a legal right to request that the company stop the investigation, but usually a lawsuit or a petition for a provisional disposition alone will not stop an investigation from proceeding. Although a provisional injunction would conclude in a relatively short period, such a provisional injunction would be unlikely to be issued if the investigation is conducted properly.

This is unlikely. Theoretically, an employee can file a claim against an employer concerning the infringement of personal rights in the course of an investigation and a motion to secure his or her claims, which would consist of an employer being forced to suspend the proceedings, but in practice we have not encountered such a situation.

There is no mechanism in place to take legal action to halt an investigation. The investigation is an internal process of the employer.

There is no legislation on a witness's role in investigations. However, the legislation on occupational safety requires that employees must report any irregularities they observe. Depending on the situation, participating in the investigation may also be part of the person's work duties, role or position, in which case the employer may require the employee to contribute to clarifying the situation. However, there is no formal obligation to act as a witness, and there is no legislation regarding the protection of witnesses. If a witness wishes, they may have, for example, an employee representative as a support person during the hearing. 

Interviewing co-workers is often conducted in internal investigations. Company employees are generally required to cooperate with company investigations, especially those who are in a position to instruct and supervise employees, or those who are responsible for maintaining corporate order, since cooperation with an investigation is itself the fulfilment of their duty to the company. Other employees are not compelled to cooperate with such an investigation unless it is deemed necessary and reasonable. No specific legal protection is provided for testifying in an investigation.

In general, an employee may not be forced to act as a witness, but based on the provisions of the Polish Labour Code, an employee must act for the benefit of a working establishment or employer and perform work in line with the instructions of an employer. A lack of cooperation from an employee (eg, refusing to attend a hearing, hiding facts or even false testimony) may constitute a basis for the loss of an employer’s trust in the employee and, as a consequence, may constitute a valid reason for termination (in some specific situations, even without notice).

There is no formal protection for employees who act as witnesses. However, participation in an investigation cannot result in negative consequences (eg, no retaliation is allowed). Also, during an investigation, employees who are bound by professional secrecy are not required to provide information that would imply a breach of such secrecy.

Normally, the work rules prescribe requirements for cooperation with investigations. An employer may instruct co-workers to give statements as witnesses as this would be a fair and legitimate order of the employer, because investigations are conducted to maintain a good working environment.

Witness protection measures in a workplace can vary as no minimum standard has been set and they are generally subject to work rules and regulations. However, some legislation, which may not relate to a workplace investigation conducted by an employer, also protects the witnesses who are helping authorities investigate violations under the relevant acts. For example, the Labor Relation Act B.E. 2518 (1975) prohibits an employer from terminating an employee or conducting any action that may result in the employee being unable to work because of filing a complaint or being a witness for the authorities, or providing information on issues related to labour protection laws to the authorities.

The employer may have a policy of non-retaliation for the protection of witnesses who have given statements and evidence for a workplace investigation.

Generally, the basic principles set out by the GDPR and the Finnish Data Protection Act apply to data processing in connection with investigations, including evidence gathering: there must be a legal basis for processing, personal data may only be processed and stored when and for as long as necessary considering the purposes of processing, etc.

Additionally, if physical evidence concerns the electronic communications (such as emails and online chats) of an employee, gathering evidence is subject to certain restrictions based on Finnish ePrivacy and employee privacy laws. As a general rule, an employee’s electronic communications accounts, including those provided by the employer for work purposes, may not be accessed and electronic communications may not be searched or reviewed by the employer. In practice, the employer may access such electronic correspondence only in limited situations stipulated in the Act on Protection of Privacy in Working Life (759/2004), or by obtaining case-specific consent from the employee, which is typically not possible in internal investigations, particularly concerning the employee suspected of wrongdoing.

However, monitoring data flow strictly between the employee and the employer's information systems (eg, the employee saving data to USB sticks, using printers) is allowed under Finnish legislation, provided that employee emails, chats, etc, are not accessed and monitored. If documentation is unrelated to electronic communications, it also may be reviewed by the employer. Laptops, paper archives and other similar company documentation considered "physical evidence" may be investigated while gathering evidence on the condition that any private documentation, communications, pictures or other content of an employee are not accessed.

When collecting physical evidence that contains personal information, the Personal Information Protection Law and its related guidelines apply. In addition, when collecting physical evidence that contains privacy information or an employee's photograph, care must be taken to ensure that the right to privacy and the image rights are not violated.

If personal data is involved – the rules and principles of the GDPR will apply. If the physical evidence includes e-mail correspondence, files, or an employee’s equipment and possessions, the Labour Code will apply (ie, as a general rule, to monitor it, a monitoring policy must be implemented at that working establishment). Such a policy must strictly determine the aim of the surveillance and an employer must only apply surveillance in situations that reflect this aim. Also, when it comes to monitoring correspondence, it must not infringe on the secrecy of the correspondence, which in practice means that the employer should not check employees’ private correspondence when checking their business mailboxes.

The basic premise is that all evidence is admissible unless it violates the law of admissibility and production of evidence, which may vary depending on the jurisdiction. In a criminal court, for example, evidence gathered in violation of the fruit of the poisonous tree doctrine would be typically inadmissible, yet in a civil court, this doctrine would not be an exclusionary rule.

The Personal Data Protection Act, BE 2562 (2019) (PDPA), which is the main data protection law in Thailand, applies when collecting, using, and disclosing pieces of evidence containing the personal data of employees. If the investigation requires sensitive information of the employee under investigation, for example, race, ethnic origin, political opinion, religious or philosophical beliefs, sexual behavior, criminal records, health data, disability, genetic data and biometric data, consent from the employee should be obtained.

Only the police can search employees' possessions (assuming that the prerequisites outlined in the legislation are met).

Since inspections of personal belongings may potentially undermine employees' fundamental human rights, they would not become lawful simply because they are conducted under employment regulations.

Inspections of personal belongings must be conducted uniformly among employees in the workplace based on reasonable grounds, in a generally reasonable manner and to a generally reasonable degree, and based on the work rules, etc.

When inspections of personal belongings are conducted under employment regulations, etc, employees must agree to the inspection except in special circumstances, such as the method or degree of the inspection being unreasonable.

On the other hand, an investigation of information stored on a company network system may constitute an infringement of the right to privacy. If there is a provision in the employment regulations regarding the use of the internet and monitoring, it is possible to investigate under such a provision. A Japanese court case on the illegality of reading e-mails in the absence of a monitoring provision stated that private use of e-mails also carries a certain right to privacy, but also stated that "considering the fact that the system is maintained and managed by the company, the protection of the employee's privacy can only be expected within a reasonable range according to the specific circumstances of the system," and that the act of reading e-mails was not illegal because the extent of private use of e-mails was beyond the limit, which was outside the reasonable range of socially accepted ideas. The court also ruled that the monitoring of the employee's abusive private use of e-mail, which was discovered in the course of an investigation of slanderous e-mails within the company, was not illegal because even if the monitoring was conducted without notice, there was suspicion of a violation of the duty of devotion to duty and corporate order. The court also stated that the investigation was necessary and that the scope of the investigation did not exceed its limit.

It depends on whether the employer implemented rules of personal control at the workplace. If yes, such rules are applicable. If not, in our opinion if there is suspicion of a serious violation, it is possible to carry out an ad hoc inspection but its scope should be limited only to necessary activities and should not concern an employee’s private files or correspondence, so as not to infringe on personal rights. If there is an ad hoc inspection, an employee should be informed in advance, and it should take place in the presence of the employee or employee’s representative, observing the rules of fairness and equity.

Electronic information created during employment would generally be owned by the employer and would be the employer’s assets. If an employee is given a computer or laptop to use for work, the employer has the right to log into that device and take any data that is stored therein, provided that the data does not contain sensitive information of that employee and PDPA requirements are met.

To avoid any potential issues regarding physical data such as documents on the employee’s desk, it is advisable to search those areas with the subject employee to show good faith. In practice, the employee normally agrees to search those areas with the employer, or allows the employer to search alone.

In respect of data protection, the processing of personal data in whistleblowing systems is considered by the Finnish Data Protection Ombudsman (DPO) as requiring a data protection impact assessment (DPIA).

See question 4 regarding amendments to the Whistleblower Protection Act.

The person designated as a whistleblower response service employee must not divulge the name, employee ID number, or other information that would allow a whistleblower to be identified without a justifiable reason, and there is a criminal penalty of up to 300,000 yen for violating this duty of confidentiality.

In principle, an internal investigation should be conducted in the same way, regardless of whether it is initiated following a whistleblowing report, an audit, or a monitoring result. This includes anything related to confidentiality, fairness, data privacy protection, etc.

If an internal investigation is initiated following a whistleblower report, the main characteristic that is imposed by the EU Directive on the protection of persons who report breaches of EU Law (Whistleblowers Directive) and that will also be available under the Draft Law is for the organisation (employer) to communicate (if practicable) the report to the whistleblower. Furthermore, the whistleblower should receive feedback as to whether follow-up actions were undertaken following the report and, if yes – what actions were taken – and if not – why the follow-up actions were not taken.

It is down to the employer’s discretion and subject to the whistleblowing policy (if any) to commence the investigation resulting from a complaint from a whistleblower. Whistleblowers and those who cooperate with an investigation should be protected. Normally the employer would not try to identify the whistleblowers. Also, it is best not to reveal the identity of the witness or the source of information; otherwise, they may feel uncomfortable giving information or raising their concerns next time. Any allegations of retaliation that surface during the investigation should be treated as a new report of possible misconduct that could be subject to additional investigation.

Concerning a workplace investigation, there is no specific legislation in force at the moment regarding confidentiality obligations. All normal legal confidentiality obligations (eg, obligations outlined in the Trade Secrets Act (595/2018)), and if using an external investigator, the confidentiality obligations outlined in the agreement between the employer and the external investigator, apply. Attorneys-at-law always have strict confidentiality obligations as per the Advocates Act (496/1958).

See question 9 for the confidentiality obligations of a whistleblower response service employee.

Other than the above, there is no specific legal obligation to maintain confidentiality for persons in charge of investigations, etc. However, if the information falls under the category of confidential information obtained by employees in the course of their work, compliance is required as an obligation attached to a labour contract, and many employment regulations stipulate a duty to keep information obtained in the course of work confidential.

The law does not cover this issue, apart from whistleblower regulations, as it should be regulated by the employer in their internal rules. The employer should ensure all participants of the investigation keep information related to it secret, as long as is necessary for the investigation (or even longer, if required by law concerning personal data or other specially protected information). Reputation, personal data and the personal rights of other people cannot be breached during the proceedings and this should be protected.

Moreover, according to the Draft Law – a whistleblower’s personal data should be kept confidential. It can only be disclosed if law enforcement authorities require it. Also, confidentiality should be guaranteed for the subject and other interested persons.

Unless the investigation is handled by a qualified professional (eg, attorney or auditor) where certain privileges apply, confidentiality obligations are generally subject to the contractual arrangement between the parties involved in the investigation. The employers need to inform any persons, including the investigators, to respect confidentiality obligations because a leak of the information gathered from the investigations could cause damage to relevant parties.

The process must be transparent and impartial, and therefore all the information that may influence the conclusions made during the investigation should be shared with the employee.

There are no specific legal stipulations or requirements regarding information, etc, that must be provided to employees who are the subject of an investigation.

There is no specific mandatory information that should be given to an employee who is the subject of an internal investigation. However, it is common practice that he or she must know what the allegations against them are, on what grounds these allegations are formulated and be given a right to discuss these allegations and the evidence or grounds for these allegations.

The subject employee(s) should be informed of the details of the allegations, such as the details of wrongdoing or violations, made against them. This creates a fair opportunity for them to clarify themselves and defend against such allegations properly. Also, if there is any evidence that needs clarification from the employee, it should be shown to the employee.

See question 11, there is no protection of anonymity as the process must be transparent to the parties involved.

For whistleblowing investigations, whistleblower protection is required (see question 9).

Witnesses and other sources of information are not protected by the Whistleblower Protection Act.

In addition, as a response to a report of harassment, the Ministry of Health, Labour and Welfare guidelines require that necessary measures be taken to protect the privacy of the reporter, the offender, and others, and that these measures be announced to the company.

Yes.

It is generally possible to keep the identity of the complainant, witnesses, or information sources confidential. There is no mandatory rule to disclose the identity of a complainant, witnesses, or sources of information. If the complainant, witnesses, or sources of information for the investigation know that their identities would not be disclosed, they will be more confident in cooperating with and supporting the investigations.

Yes, however, the need for an NDA is assessed always on a case-by-case basis.

It is possible to use NDAs in investigations.

Yes, but it may not stop the disclosure of information at the request of relevant law enforcement authorities.

Non-disclosure agreements can be made between an employer and employees who are involved in an investigation. This may include investigators and witnesses, apart from the employee under investigation. This minimises the risk of information being leaked, which can affect all parties related to the workplace investigation. However, an NDA is not absolute means to prevent the disclosure of confidential information, as the court has the authority to compel disclosure.

The privilege of investigation materials concerns a rather limited amount of cases. In practice, materials may be considered privileged in connection with the litigation process under the Procedural Code (4/1734). For example, communications between a client and an attorney may attract protection against forcible public disclosure.

There are no specific laws or rules for the provision of confidentiality privileges other than that provided by the Fair Trade Commission Rules, which allow companies that are the subject of investigations into cartels, bid rigging, etc, to treat communications with their lawyers as confidential. However, when a motion for an order to produce documents is filed in a court proceeding, if the requested documents are "documents exclusively for the use of the possessor of the documents", the obligation to produce the documents is not recognised. If the investigation materials fall under this category, it is possible to exclude them from the scope of the court order to produce documents.

In general, findings made and documents established during an internal investigation, including the report thereof, are not covered by privilege per se. It can be claimed that they are covered by the employer’s commercial secrecy, but this secrecy is not very well protected from requests of law enforcement authorities. Hence, if prosecuting authorities find a report of an internal investigation or other documents established during an investigation relevant for criminal proceedings, they can ask for them. If they are not produced voluntarily, a search can be performed.

Legal privilege will, on the other hand, cover an internal investigation if it is entrusted to an independent lawyer. Specifically, client-attorney privilege will cover all documents that are established during the investigation by a lawyer.

Under Polish law there is no distinction between legal advice privilege and litigation privilege. Hence, legal privilege will cover the documentation of the internal investigation led by a lawyer regardless of whether the lawyer’s involvement is for the purpose of obtaining legal advice or because of ongoing or contemplated litigation.

Client-attorney privilege between qualified attorneys and the client (ie, an employer) begins once information is made available to the attorney, regardless of the form it takes.

The employee under investigation has a right to have a support person present (eg, a lawyer or an employee representative) during the hearings and a right to assistance in preparing written statements.

There is no legal right to have a legal representative present or appointed during the investigation.

This is not regulated by law and it depends on internal procedures or practice at a given working establishment. As a rule, the participation of third parties or proxies is neither a recognised practice nor recommended (according to the principle that the fewer people participate in the investigation, the easier it is to determine the circumstances of the case, the so-called need-to-know rule). However, in certain situations it should be permissible for a proxy (eg, a lawyer) to participate in a meeting with a subject.

Unless the work regulations provide otherwise, an employee has the right to request legal representation during an investigation. If legal representation is requested, it is an opportunity for the employer to confirm and verify that an investigation is being conducted fairly, as the employee under investigation can bring his or her lawyer to attend the investigation.

A works council or a trade union does not have a role in the investigation.

A labour union has no legal right to be involved in the investigation. However, if there is a provision in the collective bargaining agreement between the company and the labour union that allows the labour union to be involved in an investigation conducted by the company or to receive disclosure of the results of an investigation, then such a provision should be followed.

There is no such obligation, unless it is provided for in an internal procedure or, for example, in the applicable collective bargaining agreement. It is neither a recognised practice nor recommended that such persons participate in the investigation.

However, in the event of violations that justify the termination of an employment contract with the employee, the employer should consult with that employee’s union about their intention to immediately terminate any employment contract concluded with that person or to terminate, with notice, the employment contract agreed with him or her for an indefinite term, or apply for consent to terminate the employment contract with an employee who is protected by a union.

Thai labor laws do not require a workplace investigation to involve participation from trade unions or labour unions. However, it is possible for labour unions established under the Labor Relation Act BE. 2518 (1975) to submit a demand for a collective bargaining agreement (CBA) with employers to get a seat at the table. There was a case where a management union made a CBA with the employer wherein the president of the management union would be involved in any investigation of any manager, who is a union member, under investigation. In that case, the employer must comply with the CBA by informing the president and allowing the president to participate in the investigations.

They can request assistance, for example, from an occupational health and safety representative, a shop steward or the occupational healthcare provider.

There is no legally established assistance programme.

They may be supported by, for example, allowing an alternative work environment (eg, remote work to avoid direct contact with people involved in the case). Depending on circumstances of the case, this solution will be offered to the subject or the victim. However, it is important that such actions do not infringe the rights of other people (eg, the subject itself).

Employees may also be sent on leave (by a unilateral decision of the employer – if possible under currently binding law provisions) or the parties to an employment contract may mutually agree to use such leave. Moreover, if they employer thinks it is necessary, they may assign the employee to another job for a period not exceeding three months (only if it does not result in a reduction in the employee’s remuneration and corresponds to the employee’s qualifications).

Also, depending on the employer’s decision – psychological or even legal assistance can be provided by the employer to a whistleblower or a victim.

The employees may then file a complaint with the labour inspection officer of the Labour Protection and Welfare Department to investigate the situation if they view that the conduct of the employer in the investigation violates the LPA. For example, if the employer issues a written order for suspending an employee for more than seven days. The labour inspection officer may issue an order requesting compliance, where failure to comply with such an order would result in a criminal penalty.

If they are related to the work or workplace, the employer will handle the emerging matters separately. In internal investigations, the employer is allowed to use any material legally available.

Even if a matter arises that is not subject to the investigation, it can be used as an opportunity to conduct another investigation.

It depends on the circumstances of the revealed issue and the employer’s compliance culture. Normally, if a new issue is revealed during the investigation, it should be analysed and investigated if appropriate.

Subject to the grievance protocol in place, any matter that emerges during the investigation should be handled separately as a fresh report of potential misconduct that needs further investigation.

If the nature of the grievance relates to the employer's obligations to handle such matters in general, the grievance will be investigated either separately or as a part of the ongoing investigation.

Whether or not an investigation should be suspended when an employee under investigation files a complaint depends on the specific circumstances. There is no legal requirement to suspend the investigation.

It depends on the internal policies in force in the organisation. Most often, it constitutes the basis for separate proceedings.

The investigator should guide the employee who has raised the grievance to properly raise their concerns through the grievance protocols or whistleblowing policy (if any). It is acceptable to preliminarily hear their concerns, but the investigation should be initiated separately and subject to the employer’s discretion.

As a general rule, sick leave does not prevent an investigation from progressing. Depending on the nature of the sickness, the employee can attend hearings and take part in the procedure. If the sickness prevents the employee from participating, the employer can put the process on hold temporarily.

The company will seek a physician's diagnosis and opinion and determine whether to proceed with the investigation. If an employee’s mental health suffers because of the investigation, the company may be charged with a violation of its duty of care.

This may prolong the investigation, as the employee may be unable to participate for a time (if the employee is not able to work, in many cases he or she will not be able to participate in proceedings that requires some level of engagement and psychophysical ability). Also, an employee is protected against termination of an employment contract with notice during sick leave. During such a period, the employer may only terminate his or her employment contract without notice (with immediate effect).

If the absence is anticipated to be brief, the employer may wait until the employee's return before concluding the investigation. If the employee's absence is expected to be prolonged, the investigator may alter the time of meetings or request that the employee submits a witness statement. The key point would be that all necessary measures should be taken to give the employee a chance to participate.

Regardless of a possible criminal investigation, the employer must run its internal workplace investigation without unnecessary delay. A workplace investigation and a criminal investigation are two separate processes and can be ongoing simultaneously, so the criminal process does not require the workplace investigation to be stayed. Thus, parallel investigations are to be considered as two separate matters. The police may only obtain evidence or material from the company or employer if strict requirements for equipment searches are met after a request for investigation has been submitted to the police.

It is possible to proceed with an investigation of a company even if there are concurrent criminal proceedings. It is up to the company to decide whether or not to proceed. The company may submit collected evidence collected to the police. The police will rarely disclose or provide the company with evidence they have collected. Usually, upon request by the police or regulator, the workplace investigation would be stayed. The police or regulator has to take legally required steps if compelling the employer to share evidence.

They can be run in parallel. It is up to the company whether it informs the authority about the ongoing internal investigation.

Based on our experience in criminal matters, a report from an internal investigation may not necessarily be treated as evidence per se, but as a source of information about the evidence.

According to procedural rules stemming from, for example, the Criminal Procedure Code, the authorities can demand to see evidence and documents in the employer’s possession that they consider relevant to the conducted proceedings and their subject matter.

Employers are not required to wait until the police or regulatory investigations are finished before conducting their disciplinary investigations, but it is necessary to ensure that such internal proceedings do not compromise the integrity of an investigation or result in misrepresentation or a miscarriage of justice. The level of proof for internal disciplinary action is less than the level of proof for criminal proceedings.

The employer's conclusions from the investigation.

Although there is no legal obligation to report the results of the investigation to the employee, when taking disciplinary action it is generally necessary, from a due process point of view, to explain the facts of the disciplinary action and the results of the investigation, and to allow the employee to explain him or herself. Particularly in the case of serious disciplinary actions such as dismissal, failure to provide an adequate opportunity for an explanation is a possible ground for denying the validity of the disciplinary action.

He or she must be given feedback about follow-up actions that were undertaken, or reasons why the follow-up actions were not undertaken.

In any case – the feedback must be adapted to the circumstances of each case so as not to reveal too many details or infringe the other interested parties’ rights.

There is no mandatory information on the outcome of an investigation that must be disclosed to an employee. However, disclosure of the outcome should, at a minimum, include whether an employee did or did not commit a violation. In addition, an employee who has committed a violation should be informed of any disciplinary action, and the grounds for such a decision (such as a violation of the company’s work rules). This enables the employee under investigation to appeal the outcome if it is applicable under the work rules or whistleblowing policy.

The employee under investigation may only be informed of the conclusions.

There is no legal obligation to share reports of findings. Therefore, the company may share only the summary or the entire report at its discretion.

It does not need to be shared with the employees at all. It may be shared only to the extent such a disclosure will not violate any law, including personal data protection law or personal rights.

It depends on with whom the investigation report should be shared. If there is a court case or criminal case to be further investigated by police, the investigation report should be shared in full as this would be used as documentary evidence to make a case stronger. On the contrary, if the investigation report is requested by the employee under investigation, employers are entitled to use their discretion as to what information to share.

The employer decides whether misconduct has taken place or not. Depending on the case, the employer may recommend a workplace conciliation in which the parties try to find a solution that can be accepted by both sides. The employer may choose to give an oral reprimand or a written warning. If the legal conditions are met, the employer may also terminate the employment agreement.

In an investigation into an employee's misconduct, based on the results of the investigation, disciplinary action will be considered if there are grounds for disciplinary action, and dismissal will also be considered. Personnel actions (eg, dismissal, reassignment) may also be taken.

It depends on the outcome of the investigation: imposing penalties; reporting to a regulator; notifying a suspected offence or civil claim; termination of an employment contract with or without notice; and changes to the work organisation. Following the investigation, the employer must make some legal, business or HR corrective actions.

Upon completion of the investigation, the employer can decide to take proper disciplinary action against the employee if it is found that the employee committed an offence or violated the work rules. An employer may also file a report with the police if the findings of the investigation amount to a criminal offence.

In general, investigation materials, including findings, that includes personal data should only be processed by the personnel of the organisation who are responsible for internal investigations. However, it may in some situations be required by applicable legislation that findings are disclosed to competent authorities for the performance of their duties, such as conducting investigations in connection with malpractice and violations of the law.

If it is information related to a crime, and if it is necessary to report it to the supervisory authority, it is necessary and possible to report it even if the content relates to personal information. There is no obligation to report to the police even if one is aware of a criminal fact. However, it is possible to use the results of an investigation to file a complaint or charge with the police. It is also possible to use the results of the investigation to realise the company's rights (eg, to claim damages based on tortious behaviour).

It depends on the matter. In general, there is no obligation to disclose the report. In some instances, there is an obligation to notify a suspected offence (for example, a terrorist attack or a political assassination). This, however, does not mean there is an obligation to file a report from the internal investigation, but to provide the law enforcement authority with the facts and evidence at the notifier’s disposal. In other instances of criminal offences, for example corruption, there is no obligation to notify law enforcement authorities. Therefore, it is up to the organisation to decide whether it will file a notification for a suspected offence.

At the same time, presenting a report from an internal investigation can constitute an element of defence for an organisation if a regulatory authority initiates proceedings regarding a failure by the organisation to comply with regulatory obligations.

Records of interviews do not need to be produced for the case file provided the law enforcement authority does not ask for them.

The investigation findings should be disclosed to a limited group of persons who are involved in the investigation, and for which the findings are useful. For example, an HR manager who needs to record the findings in the employee’s record, the police if the employer decides to proceed further with a criminal claim, the court if requested by that court, or if there is a court case related to the violations of the employee.

Interview records should be kept confidential and private. There is a risk of disclosure because the information in the records may be beneficial to one but damaging to others. If the interview records are leaked to others who are not involved in the investigation, it may affect the work environment in the workplace and the protection of witnesses.

Please see question 7. The outcome of the investigation involving personal data may be retained only for as long as is necessary considering the purposes of the processing. In general, the retention of investigation-related data may be necessary while the investigation is still ongoing and even then the requirements of data minimization and accuracy should be considered. The data concerning the outcome of an investigation should be registered to the employee's record merely to the extent necessary in light of the employment relationship or potential disciplinary measures. In this respect, the applicable retention time depends on labour law-related rights and limitations, considering eg, the applicable periods for filing a suit.

Records related to responses to whistleblowing must be kept for an appropriate period, but there is no legal stipulation on the retention period. Each entity is required to set an appropriate period after considering the need for evaluation and inspection, and the handling of individual cases. There is no legally stipulated retention period for other investigation results.

Neither Polish law nor the Draft Law specifically provide for a mandatory period during which the outcome of the investigation should be kept on the employee’s record.

At the same time, the Draft Law indicates that the register of whistleblowing reports, which should also contain information about follow-up actions undertaken as a result of the report, should be kept for 15 months starting from the end of the calendar year in which the follow-up actions have been completed, or the proceedings initiated by those actions have been terminated.

Also, while determining how long the outcome of an internal investigation should be kept, additional legal considerations can be taken into account, especially data privacy.

The GDPR does not specify precise storage time for personal data. The employer must assess what will be an appropriate time for storage of the data, taking into consideration the necessity of keeping personal data concerning the purpose of the processing in question. Employees' personal data should be kept for the period necessary for the performance of the employment relationship and may be kept for a period appropriate for the statute of limitations for claims and criminal deeds. A longer retention period may result from applicable laws. Following the Regulation of the Minister of Family, Labour and Social Policy on employee documentation, the employer may keep a copy of the notice of punishment and other documents related to the employee’s incurring of disciplinary responsibility in the employee record.

There are different retention periods for the data contained in employee files:

• 10 years if the employee was hired on or after 1 January 2019;
•  if the employment relationship began between 1 January 1999 and 1 January 2019, the retention period is 50 years, but may be reduced to 10 years if the employer provides the Polish Social Insurance Institution with certain mandatory information; and
•  for 50 years if the employee was hired before 1 January 1999. It does not matter whether the person is still working or not.

There is no period required by law for keeping the outcome of the investigation on the employee’s record. However, if termination of employment is the outcome of the investigation, an employer should keep details of the investigation for at least 10 years, in line with the prescribed period for an employee to file an unfair dismissal claim against an employer. An employer may use the details of an investigation to defend such a claim. For other disciplinary action, the retention of investigation details on the employee’s record is at the employer’s discretion.

There are no regulations regarding the actual investigation process. Therefore, the employer cannot be accused of procedural errors as such. However, once the matter has been adequately investigated, the employer must decide whether or not misconduct has taken place. If the employer considers that misconduct has taken place, the employer must take adequate measures for remedying the situation. Failure to adequately conduct the investigation could result in criminal sanctions being imposed on the employer as an organisation or the employer’s representative, or damages.

If the company deviates from appropriate social rules in its investigative methods and means, it will be liable for tortious behaviour. If disciplinary action or dismissal is taken based on erroneous investigation results, the validity of such action or dismissal will be denied, the employee will be able to claim for back wages, and, in some cases, claim for compensation.

If any untrue allegations were made by an employer against an employee without checking them beforehand, there is a risk that such an employee would claim damages eg, for infringement of personal rights or even filing a private indictment for defamation or outrage.

Certainly, an employer must be aware that one must never behave in a way that, for example, in the employee's opinion, could constitute a form of blackmailing or deprivation of liberty. A problem may also arise when accessing the employee's correspondence, especially when access is made to documents or private correspondence. The Draft Law provides for several criminal offences related to, for example, preventing reporting, using retaliatory measures against a whistleblower or disclosing personal data of a whistleblower).

The Thai Supreme Court has ruled that the termination of an employee was unfair due to an investigation being conducted contrary to requirements in the company’s work rules. As such, employers may be liable for damages to employees if there are errors made during investigations, or where investigations are not conducted properly.

The Supreme Court has also ruled that in cases of unfair termination, the underlying cause of the termination should be the determining factor, rather than other issues, including investigative procedures.