S15·E53 Rock Bottom

Harker is disappointed when he fails to save the life of an overdosing man, so when Conway offers him the role of Youth Diversions Officer, he takes it. Meanwhile, Boyden is tasked with giving a view of custody to new drugs referral worker Dexter King, a reformed addict with a history with the Sun Hill team. Daly is fuming to discover King is working in the area, no less with Harker as part of the Youth Diversions scheme, and his vendetta against King leads him to raid King's flat whilst Harker is there. Brownlow is left furious as a result, and despite Meadows warning Daly off the case, he jumps back into it after a local addict is assaulted by major dealer Barry Lomas. King gives info on where Lomas keeps his drugs, but he turns the tables on King, and Daly jumps at the chance to arrest him again. However, Daly is then left to eat humble pie with King once more when the assault victim dies, in order to nail Lomas for murder.