In Canada, a requirement to conduct a workplace investigation is triggered in case of harassment, sexual harassment or violence. What then is required of such a workplace investigation? In short, a “reasonable” investigation is required.
Under the common law, and specifically under Sections 25(2)(h) and 32.0.5 of the Occupational Health and Safety Act (Ontario), every employer has a duty to conduct a workplace investigation after an incident of workplace violence has allegedly occurred. In other words, if an employer gets a complaint about violence at work, or if the employer witnesses violence at work, it must conduct an investigation.