Gloucestershire | Gloucestershire County Cricket Club | South Gloucestershire | Royal Ulster Constabulary | Gloucestershire Regiment | Gloucestershire Airport | Daylesford, Gloucestershire | Berkeley, Gloucestershire | Blakeney, Gloucestershire | University of Gloucestershire | Toddington, Gloucestershire | Royal Irish Constabulary | Jamaica Constabulary Force | Stonehouse, Gloucestershire | Sherborne, Gloucestershire | Lord Lieutenant of Gloucestershire | Bisley, Gloucestershire | Windrush, Gloucestershire | Saul, Gloucestershire | Royal Papua New Guinea Constabulary | Philippine Constabulary | High Sheriff of Gloucestershire | Her Majesty's Inspectorate of Constabulary | Gloucestershire County Council | Avon and Somerset Constabulary | Winterbourne, Gloucestershire | West Midlands Constabulary | Ulster Special Constabulary | Thornbury, South Gloucestershire | South Gloucestershire and Stroud College |
Bristol Constabulary, also called Bristol City Police, was a police force responsible for policing the city of Bristol in south-west England until 1974, when it was amalgamated under the Local Government Act 1972 with Somerset and Bath Constabulary and parts of the Gloucestershire Constabulary to form the Avon and Somerset Constabulary.
Mackey previously held senior roles as Chief Constable, Cumbria Constabulary, in addition to chief officer posts in Wiltshire Constabulary, Gloucestershire Constabulary and a specialist staff officer role in Her Majesty's Inspectorate of Constabulary (HMIC).