Gary Walker is head of clinical services at the charity which celebrates its 90th anniversary this year.

BBC: Veterans now fight mental battle

Gary Walker was sacked as chief executive in 2010 for for gross professional misconduct for allegedly swearing in a meeting.

BBC: Lincolnshire NHS trust denies gagging order

Gary Walker, a former chief executive of United Lincolnshire Hospitals Trust, spoke out claiming he was sacked for putting patient safety before targets.

BBC: MPs want no action against gagged ex-NHS boss