Liberal Democrat Julian Huppert criticised KevinColes from Pro-Tect Systems, during an evidence session with the Home Affairs Committee on 7 December 2010 on the use of Tasers by police forces in England and Wales.
Former Yugoslavia international Petrovic, 44, will work with senior coach Paul Groves, first-team coach Kevin Keen, goalkeeping coach David Coles and fitness expert Eamon Swift.