This guidance makes clear that encouraging or assisting another person's suicide is a criminal offence in Britain.
It also draws attention to the GMC's duty to act in the public interest, which it defines as: protecting patients; maintaining public confidence in the medical profession; and declaring and upholding proper standards of conduct and behaviour.
Having observed that "it is difficult to lay down hard and fast rules", the guidance lists a number of situations which might (or might not) raise questions as to a doctor's fitness to practice.