Dr Az Hakeem worked at the Tavistock and Portman Foundation Trust for 12 years and is t he author of Detrans: When Transition Is Not The Solution, which was published this month.

Dr Az Hakeem worked at the Portman Clinic for 12 years until 2012 and said he expressed concerns the procedures followed by staff 'were mad', describing Tavistock as a 'transing factory'.