Line Of Duty: AC-12 investigates 'force's highest profile murder' in trailer

Line Of Duty is back on March 21 and in anticipation of the sixth series, the BBC released a full-length trailer on Tuesday. https://www.dailymail.co.uk/tvshowbiz/article-9342397/Line-Duty-Dramatic-new-trailer-teases-AC-12-investigating-forces-highest-profile-murder.html?ns_mchannel=rss&ns_campaign=1490&ito=1490