- How many investigators should be involved, and who should take the lead on the investigation. Choosing an internal investigator may lead to witnesses who aren’t as open or willing to disclose their experience or observations for fear of being the victims of bias in the investigation. An external investigator may also be more objective, as what they hear and learn isn’t clouded by their experiences and history with the alleged wrongdoer, victim, and/or witnesses. Investigators should not have direct or indirect ties to any of the people or situations involved in the investigation.
- Identifying all potential witnesses who may be able to shed light on the alleged incident(s). For an investigation to be worthwhile, it has to be thorough enough to reach a reasonable conclusion. When an investigation is conducted haphazardly, key information may fall through the cracks leading to an incorrect or inappropriate resolution. If an interview with one witness identifies someone else who may have relevant information, there should be a process in place to document that finding and to follow up with that new witness.
Proper workplace investigations are essential to establishing a safe and welcoming work environment. However, these investigations are often complex in nature and involve navigating potentially sensitive topics.
The possibility for errors to occur is present in every investigation and employers must be mindful of that risk, and take deliberate action to limit as many potential errors as possible.
The true cost of committing an error can go far beyond the additional time and resources needed to clean up after the fact; companies may face legal action, reputation harm, and other consequences long after the investigation has been concluded.
Avoidable Errors in Workplace Investigations
At a threshold level, organizations must implement a formal process for employees to report alleged misconduct, and for those allegations to be addressed swiftly and with consistency. Without that, HR or senior leadership may not even become aware of a potential issue until it has become a much larger, and more costly, problem.
However, even with a formal reporting process in place, companies can still make avoidable mistakes during their investigations.
Failing to plan
Companies that dive into an investigation immediately may feel they’re doing the right thing by not wasting any time. While it’s important to take prompt action after learning of allegations of wrongdoing, it’s just as important to put some careful thought into the investigation before beginning. Identify things like:

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