Merseyside Police chief constable Sir Jon Murphy to retire
The chief constable of Merseyside Police has announced he will retire in June.
Sir Jon Murphy, who joined the force in 1975 as a 16-year-old cadet, has been in the post for six years.
The 57-year-old, who was knighted in 2014, said he made the decision "with a heavy heart", adding it had been a "great honour" to serve Merseyside.
Jane Kennedy, the area's Police and Crime Commissioner, said recruitment for a replacement would begin soon.
She said Sir Jon had been a "first class" chief constable.
The chief constable served in uniform during the 1981 Toxteth riots before becoming a detective.
He was appointed Deputy Chief Constable of Merseyside in 2004, after working with the National Crime Squad, and took up the top job six years later.
Sir Jon, who has been commended on 14 occasions and received the Queen's Police Medal in 2007, said he had been "privileged... to lead the police force my father served in".