Jed Mercurio created Line of Duty.
Jed Mercurio . His chief works for television are the series Line of Duty , Bodies ( based on his 2002 novel ) , The Grimleys and Cardiac Arrest . Line of Duty is a British police procedural television series created by Jed Mercurio that premiered on 26 June 2012 . In an interview on 28 April 2016 , creator Jed Mercurio said that a fourth series would begin filming in the autumn of that year .