S03E03 The Defence Calls... Line of Duty
calendar_today 2012. Jed Mercurio.
people Martin Compston. Vicky McClure. Adrian Dunbar. Craig Parkinson.
DS Steve Arnott believes there is a dark secret in Danny Waldron's past. But while DI Cottan is commended for cracking the Waldron case, the spotlight falls on Arnott's questionable conduct in a previous enquiry.