Cheshire Police and Crime Commissioner is John Dwyer, appointed in May 2021. Dwyer previously held the post from November 2012 to May 2016. From May 2016 until May 2021, David Keane held the office. The police and crime commissioner is scrutinised by the Cheshire Police and Crime Panel, made up of elected councillors from the local authorities in the police area. Before November 2012, the Cheshire Police Authority was the police governance. Chief constables The force has had a number of chief constables: Captain Thomas Johnes Smith (1857 to 1870) (First Chief Constable of Cheshire) Captain John William Arrowsmith (1870 to 1881) Colonel John Henry Hamersley (1881–1910) Lieutenant Colonel Pulteney Malcolm (1910 to 1934) Captain Archibald Frederick Hordern (1934 to 1935) (Chief Constable of Lancashire, 1935–50) Major Sir Jack Becke (1935 to 1946) (Knighted in 1944 Birthday Honours) Godwin Edward Banwell (1946 to 1963) Henry Watson (1963 to 1974) William Kelsall (1974 to 1977) George Edward Fenn (1977 to 1984) David J. Graham (1984 to 1993) J. Mervyn Jones (1993 to 1997) Nigel K. Burgess (1997 to 2002) Sir Peter Fahy (2002 to 2008) David Whatton (2008 to 2014) Simon Byrne (2014 to 2017) Janette McCormick (acting; 2017 to 2019) Darren Martland (2019 to 2021) Mark Roberts (2021 to present) Officers killed in the line of duty The Police Roll of Honour Trust and Police Memorial Trust list and commemorate all British police officers killed in the line of duty. Since its establishment in 1984, the Police Memorial Trust has erected 50 memorials nationally to some of those officers. Since 1788, the following officers of Cheshire Constabulary, or its predecessor organisations, were killed while attempting to prevent, stop or resolve a crime: Officer John Parry, 1788 (killed arresting a suspect on warrant). Police Constable Charles Alfred Cartledge, 1894 (fatally injured stopping a disturbance). Police Constable Alfred Kerns, 1900 (fatally injured during a struggle with two men). Organisation The constabulary covers the council areas of Cheshire East, Cheshire West and Chester, Halton, and Warrington. In 2015, the structure of the force was changed to cover eight Local Policing Units (LPUs) across the county. Chester Crewe Ellesmere Port Macclesfield Northwich Runcorn Warrington Widnes Basic command unit structure Each area has several specialist teams, namely: Local Policing Units, each with local neighbourhood policing teams and investigation teams. The units concentrate on responding to both emergency and non-emergency calls, preventing and detecting local crime