Sir Jon Murphy joined Merseyside Police as a Cadet in January 1975. After early uniform roles in Toxteth and Liverpool city centre he spent three years in the force support group, during which time he was on the front line of the 1981 Toxteth riots. Shortly after the riots he entered the CID as an aide and there followed an almost twenty-year unbroken career as a detective rising to the rank of Detective Superintendent (Senior Investigating Officer). He then returned to uniform duties as Force Operations Manager prior to attending the Strategic Command Course.
He left Merseyside Police to join the National Crime Squad as Assistant Chief Constable, Head of Operations in 2001. In this role he was responsible for national and international serious organised crime operations and led, for the UK, in the establishment of the first European Joint Investigation Team (JIT). He returned to Merseyside Police in 2004 as Deputy Chief Constable.
In September 2007 he was asked by the then Home Secretary to lead the Ministerial Task Force - 'Tackling Gangs Action Programme' (TGAP).
Following this, in April 2008, he became the Association of Chief Police Officers (ACPO) National Serious & Organised Crime Coordinator where, following a paper completed for the Police Minister 'The Level 2 Gap - an alternative narrative' he led on a programme to deliver on work commissioned by the newly established National Organised Crime Partnership Board.
In February 2010 he was appointed Chief Constable of Merseyside Police.
Sir Jon was a career detective, serving as an investigator in every rank. He is an experienced Senior Investigating Officer (SIO), having led homicide investigations, internal corruption enquiries and covert operations. He has extensive experience of command of firearms operations and critical incidents.
He read Law at Liverpool University and has a postgraduate Criminology Diploma from Cambridge University. In 1995 he was awarded a Fulbright Fellowship and worked in the USA with the FBI and other policing agencies researching covert policing methods.
He has previously led the national portfolios of Surveillance, Telephone Intercept and Serious Organised Crime, for five years he was the National Policing Lead for the Crime Operations Business Area of National Police Chiefs Council.
Sir Jon has been commended for outstanding police work on 14 occasions and was awarded the Queen's Police Medal in the 2007 Birthday Honours. In 2012 he was given a Lifetime Achievement Award by the Police Federation National Detective Forum and in 2013 he was voted Mersey Region Public Sector Leader of the Year. In 2014 he received a Knighthood in the Queen’s Birthday Honours. He is a Deputy Lord Lieutenant for the County of Merseyside.
He was awarded an Honorary Fellowship by Liverpool John Moores University in November 2014, an Honorary Doctor of Laws by the University of Liverpool in 2016 and a Senior Associate Fellow of the Royal United Services Institute (RUSI) the same year.
Sir Jon retired from the Police Service in July 2016 and immediately took up the position of Professor of Advanced Policing Studies at Liverpool John Moores University. He remains an advisor to the UK government on policing matters and has conducted a number of critical reviews, including assessing the Security of the Palace of Westminster following the terrorist attack of March 2017 and the effectiveness of the Service Police within the Service Justice System on behalf of the Ministry of Defence.