Dorset Police Chief Constable James Vaughan to retire DORSET S most senior police officer has announced plans to retire from policing in the autumn of 2021. Chief Constable James Vaughan is set to call time on his career after leading Dorset Police for three and half years. His successor will be appointed by recently elected Dorset Police and Crime Commissioner David Sidwick, with support from the outgoing officer. Chief Constable Vaughan said he was considering his retirement last year but delayed the move due to the pandemic. He began his career in Wiltshire Police in 1992, working in various uniform and detective roles before moving up through the ranks to work in major, serious and organised crime, citizen-focused policing, partnerships and safer neighbourhoods and later he became the head of CID.