Workplace Investigations
Contributing Editors
Workplace investigations are growing in number, size and complexity. Employers are under greater scrutiny as of the importance of ESG rises. Regulated industries such as finance, healthcare and legal face additional hurdles, but public scrutiny of businesses and how they treat their people across the board has never been higher. Conducting a fair and thorough workplace investigation is therefore critical to the optimal operation, governance and legal exposure of every business.
IEL’s Guide to Workplace Investigations examines key issues that organisations need to consider as they initiate, conduct and conclude investigations in 29 major jurisdictions around the world.
Learn more about the response taken in specific countries or build your own report to compare approaches taken around the world.
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01. What legislation, guidance and/or policies govern a workplace investigation?
01. What legislation, guidance and/or policies govern a workplace investigation?
United Kingdom
United Kingdom
- at Slaughter and May
- at Slaughter and May
In the UK, the primary employment legislation of relevance to a workplace investigation includes the Employment Rights Act 1996 (ERA 1996), the Equality Act 2010 (EA 2010), and the Employment Relations Act 1999 (ERA 1999).
Other legislation includes the retained EU law version of the General Data Protection Regulation (UK GDPR) and the Data Protection Act 2018 (DPA 2018), the Investigatory Powers Act 2016 (IPA 2016) and the Investigatory Powers (Interception by Businesses etc for Monitoring and Record-keeping Purposes) Regulations 2018 (IP Regs 2018), and the Humans Rights Act 1998 (HRA 1998).
In terms of guidance, the Advisory, Conciliation and Arbitration Service (ACAS) have produced a Code of Practice on Disciplinary and Grievance Procedures (the ACAS Code) as well as a Guide to conducting workplace investigations. The Information Commissioner’s Office (ICO) have their Employment Practices Code, and other pieces of guidance on the data protection aspects of investigations (see question 7).
Most employers will have internal policies governing how workplace investigations should be conducted. The level of detail may vary considerably; public sector and regulated employers may be more prescriptive in their policies, which may even have contractual force. There may also be provisions of the employment contract that are relevant (particularly as regards suspension – see question 3).
27. What legal exposure could the employer face for errors during the investigation?
27. What legal exposure could the employer face for errors during the investigation?
United Kingdom
United Kingdom
- at Slaughter and May
- at Slaughter and May
A reasonable investigation is a key component of a fair disciplinary process. Errors in the investigation could therefore expose the employer to liability for unfair dismissal under ERA 1996.
Failure to follow the ACAS Code does not automatically make an employer liable in any proceedings taken against it. However, an employment tribunal will take the ACAS Code into account when deciding whether an employer has behaved fairly, and has the power to increase awards by up to 25% where it believes an employer has unreasonably failed to follow the ACAS Code's provisions.
There may be liability for breach of the employee’s contract of employment if the employer breaches aspects of the investigation policy that are contractual, any contractual provisions relating to suspension, or otherwise conducts the investigation in a manner that breaches the implied term of trust and confidence.
There may be liability under the EA 2010 if the investigation is conducted in a discriminatory manner, which could include not making reasonable adjustments to the process for disabled employees.
Where the investigation involves protected disclosures, there may be liability under the whistleblowing provisions of ERA 1996 if the whistleblower is subjected to detriment or dismissal on the grounds of their protected disclosures.
Improper evidence gathering or processing may be actionable under the DPA 2018, IPA 2016 or the IP Regs 2018.
Finally, there may be common law claims in some circumstances (for example where reports need to be made to regulators, which in turn may affect the relevant employee’s future employment prospects) for defamation, or, more unusually, for stress-related personal injury.