For most people, participating in a workplace investigation is an unusual departure from their workplace routine.  Whether they are a complainant or a respondent, it can be a stressful interaction to sit in a room, with a stranger, and be asked about the details of something that happened, say, ten months ago.  One way to address this stress is by allowing a support person to attend the meeting.  Indeed, some institutions specifically contemplate the involvement of a support person in their policies.  But like anything connected to a workplace investigation you need to think about the support person’s attendance at the interview before it happens.   Here are some tips about involving support people in a workplace investigation interview.