Question: George Hamilton served as the constable of the police force that is the successor of what?
Context: He was born on 4 November 1947 in Maitland, New South Wales.  He was a Corporal in the Australian Army from 22 April 1967 to 21 March 1968 and served in the Vietnam War.  He was a probationary constable in the New South Wales Police Force from 1969 to 1982.  He became a paraplegic when a truck knocked him off his police motorbike on Concord Road in Sydney in May 1969.  Commissioner Norman Allan visited Kidd whilst he was in Prince Henry Hospital and told him he could remain in the police force as long as he wanted to.  Kidd worked at several Sydney police stations before transferring to the Lismore Police Station's intelligence area where he assisted in major incidents such as the Murwillumbah bank robbery, the double beach murders at Kingscliff, a couple of other serious murders involving the Mr Asia syndicate.  He retired from the police force in 1982 due to ill health.  In March 1995, he was awarded the National Medal.  He died in Toowoomba, Queensland on 26 February 2016. Special police (also see auxiliary police) usually describes a police force or unit within a police force whose duties and responsibilities are significantly different from other forces in the same country or from other police in the same force, although there is no consistent international definition.  A special constable, in most cases, is not a member of a special police force; in countries in the Commonwealth of Nations and often elsewhere, a special constable is a voluntary or part-time member of a national or local police force or a person involved in law enforcement who is not a police officer but has some of the powers of a police officer. George Hamilton (born 27 June 1967) is a Northern Irish police officer.  Since 2014, he has served as the Chief Constable of the Police Service of Northern Ireland.  He was previously the Assistant Chief Constable with responsibility for rural policing. William Stephen Hamilton (August 4, 1797 – October 9, 1850), a son of Alexander Hamilton and Elizabeth Schuyler Hamilton, was an American politician and miner who lived much of his life in the U.S. state of Illinois and territorial Wisconsin.  Hamilton was born in New York, where he attended the United States Military Academy before he resigned and moved to Illinois in 1817.  In Illinois he lived in Springfield and Peoria and eventually migrated to the lead-mining region of southern Wisconsin and established Hamilton's Diggings at present-day Wiota.  Hamilton served in various political offices and as a commander in two Midwest Indian Wars.  In 1849 he moved to California on the heels of the California Gold Rush.  He died in Sacramento, most likely of cholera, in October 1850. Ernest Frank Richardson (1871–1952) was a Chief Constable of Salisbury, Wiltshire (UK).  He joined the Police Force in 1893 at Cheltenham, Gloucestershire, and very rapidly achieved promotion to Chief Constable.  He came from a family many of whom served in the Police Force, and three family members served concurrently in the office of Chief Constable, at Salisbury, Hereford and Halifax. The Police Service of Northern Ireland (PSNI; Irish: "Seirbhís Póilíneachta Thuaisceart Éireann" ; Ulster Scots: "Polis Servis o Norlin Airlan") is the police force that serves Northern Ireland.  It is the successor to the Royal Ulster Constabulary after it was reformed and renamed in 2001 on the recommendation of the Patten Report. Alfred Herbert Richardson (1874–1951) was an English policeman.  He joined the Birmingham City Police in 1890.  He achieved very rapid promotion within this force and in 1901 became Chief Constable of Newcastle-under-Lyme, Staffordshire.  In 1903 he successfully applied for the Chief Constable's office at Halifax, West Riding of Yorkshire, where he remained until his retirement in 1944.  During his time there he achieved many early improvements in policing at Halifax, some of which were later used nationwide.  The most notable were the installing of coloured lights as traffic signals at road junctions, the formalisation of procedures for police identity parades, making 'keep left' mandatory for traffic and the installation of police telephones in the town, among others.  In later years he was recognized as being a policeman who was ahead of his time.  He came from a police family: his father, Frank Richardson (1851–1938), was the Chief Constable of Hereford from 1882 until 1920, and his elder brother, Ernest Frank Richardson (1871–1952), served as Chief Constable of Salisbury between 1903 and 1929.  Thus three members of the Richardson family served as chief constables between 1902 and 1920.  He also had three other brothers who served in other police forces. Humberside Police is the territorial police force responsible for policing an area covering the East Riding of Yorkshire, the city of Kingston upon Hull, North East Lincolnshire and North Lincolnshire.  The current Chief Constable is Lee Freeman who was the Assistant Chief Constable Lincolnshire from 2013 - 2015 before transferring to Humberside in May 2015.  Following the sudden departure of Justine Curran, he took over as the Deputy Chief Constable in February 2017 before being appointed into the role as a Chief Constable In June 2017. Sampson was educated at Wakefield Technical College and the University of Leeds.  He joined the Dewsbury Borough Police Force in 1949.  He spent many years in CID and was the head of the Home Office Detective Training School at Wakefield from 1971 to 1972.  He became Assistant Chief Constable of West Yorkshire Constabulary in 1974; Deputy Chief Constable of Nottinghamshire Police in 1976; and Chief Constable of West Yorkshire Police in 1983.  He was one of Her Majesty's Inspectorsof Constabulary from 1989 to 1990; and HM Chief Inspector of Constabulary for Scotland from 1991 to 1993. Cambridgeshire Constabulary is the territorial police force responsible for law enforcement within the ceremonial county of Cambridgeshire in the United Kingdom.  In addition to the non-metropolitan county, the Police area includes the city of Peterborough, which became a unitary authority area in 1998.  The Chief Constable is Alec Wood, who replaced Simon Parr in July 2015, as acting Chief Constable but was subsequently permanently appointed to the role the following month.  The Deputy Chief Constable (Support) is Mark Hopkins and the Assistant Chief Constable (Operations) is Andy Hebb.
Answer: the Royal Ulster Constabulary