Mandatory where allegations of harassment
Where there are allegations of workplace harassment, violence, abuse or human rights discrimination, a workplace investigation performed by a skilled and experienced neutral third party will provide an unbiased and deep look into the problem. From there, recommendations can be made for the most appropriate resolution.
My experience as an Employment lawyer, Mediator, Arbitrator and in particular as a Deputy Judge, Small Claims Court, has afforded me a deep well of experience in assessing witness credibility, assessing documentary evidence and writing reports that assist the employer in getting to the bottom of the issue that is causing disruption in the workplace.
In some Canadian jurisdictions including Ontario, workplace investigations are required where there are allegations of harassment and/or violence. Having a neutral third party perform the investigation, will take the heat off management should a difficult decision have to be made.
I have conducted many workplace investigations that have led to a resolution of difficult situations. My focus on peaceful resolution has brought order where there was chaos, while ensuring that everyone involved is treated fairly and with dignity even if someone has to lose their job.
Don't attempt to conduct your own workplace investigation. You have your business to focus on. I will focus on getting to the truth of the situation (no matter how unpleasant or awkward) and bringing a peaceful solution to your workplace.