What is Line of Duty?
<br />{{Infobox television | image = | caption = | genre = {{Unbulleted list|[[Police procedural|British police drama]]|[[Crime fiction|Crime]]|[[Detective fiction]]|[[Thriller (genre)|Thriller]]}} | creator = [[Jed Mercurio]] | developer = | writer = Jed Mercurio | director = {{Unbulleted list|[[David Caffrey]]|[[Douglas Mackinnon]]|Daniel Nettheim|Michael Keillor|[[John Strickland]]|[[Jed Mercurio]]|[[Susan Tully|Sue Tully]]}} | creative_director = | presenter = | starring = {{plainlist}} * [[Martin Compston]] * [[Vicky McClure]] * [[Adrian Dunbar]] * [[Craig Parkinson]] * [[Lennie James]] * [[Keeley Hawes]] * [[Daniel Mays]] * [[Thandie Newton]] * [[Stephen Graham]] * [[Anna Maxwell Martin]] {{endplainlist}} | voices = | theme_music_composer = <br />[[Carly Paradis]] | opentheme = | country = United Kingdom | language = English | num_episodes = 36 | list_episodes = List of Line of Duty episodes | executive_producer = Stephen Wright (BBC)<br/>Simon Heath (World Productions)<br/>[[Jed Mercurio]] <small>(Series 2–5)</small> | producer = [[Jed Mercurio]] <small>(Series 1)</small><br/>Peter Norris (<small>Series 2–3)</small><br/>Cait Collins (<small>Series 4)</small> | editor = | location = [[Birmingham]] <small>(Series 1)</small><br/>[[Belfast]] <small>(Series 2–5)</small> | cinematography = Ruairi O'Brien <small>(Series 1–2)</small><br/>Peter Robertson <small>(Series 3)</small><br/>Anna Valdez Hanks <small>(Series 4)</small><br/>Stephen Murphy <small>(Series 4)</small> | camera = | runtime = 56–58&nbsp;minutes | company = [[World Productions]] | channel = [[BBC Two]] (2012–2016) <br/>[[BBC One]] (2017–) | first_aired = {{Start date|df=yes|2012|06|26}} | last_aired = present | related = }} '''''Line of Duty''''' is a British [[BBC]] [[police procedural]] television series created by Jed Mercurio. It was [[BBC Two]]'s best-performing drama series in ten years with an audience of 4.1&nbsp;million viewers.<ref>[http://www.broadcastnow.co.uk/in-depth/the-broadcast-interview/jed-mercurio-taking-aim-at-target-culture/50