If you are a security guard, anyone can ask to see your licence. You must show the front of your licence, which includes your licence number, name and photo. You are not required to hand over your licence to a member of the public or show the back of your licence. In order to allow for undercover work, licensed private investigators do not have to identify themselves as private investigators. However, if an individual presents him or herself as a private investigator, he or she must show a licence upon request.