When is a mental health professional competent to assess a person's decision to hasten death?

As the country continues to debate the legality of aid-in-dying, it appears inevitable that at some point there will be a need for mental health professionals to be involved in assessments of individuals asking for a hastened death. I designed this article to provide a set of guidelines that will allow both mental health professionals and potential consultees to determine if a professional has the training and expertise necessary to be a competent consultant.