Dr Riddell was born in 1949 and died from bronchopneumonia on 25 November 1998. He qualified MB.ChB in Glasgow in 1973 and was elected MRCPsych in 1978. He worked as a Consultant Psychiatrist at Woodilee Hospital, Stobhill Hospital and latterly as Clinical Director, Lennox Castle Hospital. He was very active within British Medical Association activities, being a past Chairman and Secretary of the Glasgow Division, a regular attender at the ARM, and a member of both Scottish Council and Scottish Committee for Hospital Medical Services. He latterly chaired the Trust's Medical Staff Association. He enjoyed painting, Bible studies and sailing. He leaves a wife, Janice (also a consultant psychiatrist), a son, two daughters, his mother and sister, Zal Rahman.