Independent Workplace Investigations.

When a complaint, grievance or allegation needs investigating, an independent external investigator removes any question of bias and protects the integrity of the outcome. Through Equitas Investigate, we conduct thorough, evidence-based workplace investigations into bullying, harassment, discrimination, whistleblowing and conduct breaches – delivering findings that are procedurally fair, legally defensible and ready to withstand scrutiny. We work alongside HR teams, employers and legal advisors across the UK.

What Is an Independent Workplace Investigation?

Specialist Civil, Commercial & Workplace Mediation

An independent workplace investigation is a structured, impartial enquiry into a complaint or allegation, carried out by an external investigator with no connection to the parties involved.

Bringing in an outside specialist matters most when the issue is serious or sensitive, when those involved are senior, or when an internal investigation could be seen as biased.

The investigator gathers and tests the evidence, interviews the relevant people, and produces a clear, balanced report of findings against the allegations.

The aim is a process that is fair to everyone involved and robust enough to support whatever decision follows, including at tribunal.

  • Investigations We Conduct
  • Bullying & Harassment
  • allegations of bullying, harassment or intimidation between colleagues or by managers.
  • Discrimination
  • complaints involving protected characteristics and alleged unfair treatment.
  • Whistleblowing
  • protected disclosures requiring careful, confidential handling.
  • Grievances
  • formal employee grievances that need impartial, external review.
  • Disciplinary Matters
  • allegations of misconduct requiring a fair, evidenced investigation.
  • Policy & Conduct Breaches
  • breaches of company policy, codes of conduct or regulatory requirements.
  • Why Use an External Investigator?
  • Genuine Impartiality
  • no internal relationships or history to compromise the findings.
  • Legally Defensible
  • a rigorous, evidence-based process built to withstand tribunal scrutiny.
  • Specialist Expertise
  • experienced investigators who handle these matters every day.
  • Protects Your People
  • relieves HR and managers of an awkward, time-consuming burden.
  • Reduces Risk
  • a fair, properly documented process lowers the risk of successful claims.
  • Discreet & Confidential
  • sensitive matters handled with the care they demand.

How Our Investigation Process Works

Workplace & Corporate Investigations

Every investigation begins by agreeing clear terms of reference, so the scope, the allegations and the questions to be answered are defined from the outset.

We then gather and review the relevant documents, interview the complainant, the respondent and any witnesses, and test the evidence carefully and even-handedly.

Throughout, the process is handled with discretion and confidentiality. We produce a structured report setting out the evidence, our analysis and clear findings on each allegation, leaving you with a defensible basis for any decision.

Where it helps, we also provide post-investigation support and recommendations.

Why Choose Equitas?

  • Independent & Impartial
  • Professionally Accredited and Qualified
  • Legally Informed & Ethically Driven
  • Discreet, Professional, and Outcome-Oriented
  • Nationwide Service

Our investigations are conducted to recognised professional standards by experienced, independent investigators, giving you findings you can rely on and defend.

What is a workplace investigation?

A workplace investigation is a structured enquiry into a complaint, grievance or allegation at work - such as bullying, harassment, discrimination or misconduct. An investigator gathers and tests the evidence, interviews those involved, and produces a report setting out clear findings against the allegations. An independent external investigation is carried out by a specialist with no connection to the organisation or the people involved, which removes any question of bias.

When should an employer use an external investigator?

An external investigator is advisable when the allegation is serious or complex, when senior staff are involved, when there is no one internally with the time or impartiality to investigate properly, or when an internal process could be seen as biased. Using an independent investigator protects the fairness of the process and the credibility of the outcome, which is particularly important if the matter could later reach an employment tribunal.

What makes a workplace investigation legally defensible?

A legally defensible investigation is impartial, thorough and properly documented. It works to clear terms of reference, follows a fair process in line with ACAS guidance, gives the parties a chance to respond to the allegations, tests the evidence even-handedly, and reaches conclusions that are justified by that evidence. A well-conducted investigation gives an employer a sound basis for any decision and stands up to scrutiny if challenged.

How long does a workplace investigation take?

Timescales depend on the complexity of the allegations, the number of people involved and how readily evidence and witnesses are available. A straightforward matter may take a couple of weeks, while a complex investigation with multiple allegations and witnesses can take longer. We agree a realistic timescale with you at the terms of reference stage and keep you updated throughout.

Is a workplace investigation confidential?

Yes. Investigations are handled with strict confidentiality and discretion, with information shared only with those who genuinely need it. Maintaining confidentiality protects everyone involved, supports the integrity of the process and helps preserve working relationships wherever possible.

What happens after the investigation?

We provide a clear, structured report setting out the evidence, our analysis and our findings on each allegation. The decision on any action remains with the employer, but we can offer post-investigation support - including recommendations for resolution and risk mitigation, and liaison with HR, legal advisors and governance leads - to help you act on the findings with confidence.

Need an Independent Investigation?

Talk to us about your situation in confidence – we will explain how an external investigation works and how we can help.