The hit BBC crime drama is coming back to screens for the first time since its record-breaking 2021 finale The hit BBC crime drama is coming back to screens for the first time since its record-breaking 2021 finale BBC hit crime drama Line of Duty has been confirmed to return for a seventh series. A new six-part season following police anti-corruption investigations was today announced by the BBC. “ We couldn’t be more delighted to be returning for a seventh [series],” said creator Jed Mercurio.