What to Expect When You Hire a Workplace Investigator: A Guide for HR Professionals

Hiring an independent workplace investigator for the first time? This practical guide walks HR professionals through the process from intake to final report.

5/2/20262 min read

white concrete building during daytime
white concrete building during daytime

If your organization is facing a workplace harassment or misconduct complaint and you have decided to retain an independent investigator, you may be wondering what happens next. This guide walks you through the process from first contact to final report, so you know what to expect at each stage.

Step 1: Initial Consultation

The process begins with a confidential consultation. This is an opportunity for the investigator to understand the nature of the complaint, the parties involved, the organizational context, and any urgency or legal timelines at play.

You will be asked to provide relevant background documents — the complaint itself (if written), applicable workplace policies, and any prior documentation related to the parties or the incident.

At this stage, the scope of the investigation is defined: what allegations will be investigated, who the relevant parties and witnesses are, and what the expected timeline and deliverables look like.

Step 2: Retainer and Confidentiality Agreement

Before work begins, the investigator will provide a retainer agreement that outlines the scope, timeline, fees, and confidentiality obligations. Confidentiality is fundamental — the investigator does not disclose information shared during the investigation to anyone outside the process without authorization.

Step 3: Notifying the Parties

Both the complainant and the respondent must be formally notified that an investigation is taking place. The respondent must be told the nature of the allegations against them — not necessarily every detail, but enough to allow them to respond meaningfully. This is a requirement of procedural fairness and is non-negotiable in a defensible investigation.

Step 4: Witness Interviews

The investigator will conduct separate, confidential interviews with the complainant, the respondent, and any relevant witnesses. Interviews are typically conducted in a private setting and may take between one and three hours depending on complexity.

Each party is given a fair opportunity to share their account and respond to the evidence. Notes or recordings (with consent) are taken to support the accuracy of the report.

Step 5: Document Review

In parallel with interviews, the investigator reviews relevant documentary evidence. This may include emails and messages, scheduling records, policy documents, prior disciplinary records, surveillance footage, or any other material relevant to the allegations.

Step 6: Analysis and Findings

Once evidence is gathered, the investigator weighs it against the applicable standard of proof — in workplace investigations, this is the balance of probabilities (i.e., whether it is more likely than not that the alleged conduct occurred).

This is not a criminal standard. The investigator does not need to prove guilt beyond a reasonable doubt. They need to make a reasonable, well-supported finding based on all available evidence.

Step 7: The Final Report

The final report is a written document that summarizes the allegations, the evidence gathered, the investigator's analysis, and their findings for each allegation. A well-written report includes clear findings of fact, references to applicable policies or law, and conclusions that are logical and well-supported by the evidence.

The report is delivered to the employer (or the party who retained the investigator). The employer is then responsible for determining next steps, including any corrective action or discipline.

What the Investigator Does Not Do

It is important to understand the boundaries of the investigator's role. The investigator does not decide what discipline should occur — that is the employer's decision. The investigator does not advocate for either party. And the investigator's report is not a legal determination — it is a professional finding that can support the employer's decisions.

Working With 10-8 Services

10-8 Services delivers thorough, impartial workplace investigations with clear, well-documented reports that are built to withstand scrutiny. Whether the matter involves harassment, discrimination, misconduct, or policy breaches, every engagement is handled with professionalism, confidentiality, and respect for all parties.

Contact us today for a free confidential consultation to discuss your organization's needs.