Claim: Jed Mercurio created Line of Duty.

Line of Duty is a British police procedural television series created by Jed Mercurio that premiered on 26 June 2012 . It is the most popular drama series broadcast on BBC Two in the multichannel era and is a winner of the Royal Television Society Award for Best Drama Series . Line of Duty was included in a list of the Top 50 BBC Two shows of all-time , in a list of the 80 best BBC shows of all time and was the highest ranked current series in a list of the best cop shows of all time .   The first series was BBC Two 's best-performing drama series in ten years , with a consolidated audience of 4.1 million viewers . The drama was recommissioned for a second series and the first episode was broadcast on 12 February 2014 . The second series achieved widespread public and critical acclaim , and on 8 April 2014 , the BBC commissioned two more series .   In an interview on 28 April 2016 , creator Jed Mercurio said that a fourth series would begin filming in the autumn of that year . It commenced broadcast on BBC One on 26 March 2017 . A fifth series has been confirmed and will air in Spring 2019 . A sixth series has also been ordered by the BBC .   In the United States , the first series was aired on Hulu in August 2012 as an exclusive series .