DI Chris Deakin has a word to DS John Boulton about his team's informants. Boulton has done pretty well, but DC Tosh Lines hasn't recruited a snout for months. Under pressure, Lines tries to recruit Karen Walsh, the wife of the victim of a recent attack which he'd investigated, but she refuses to grass on her husband or his associates. Lines puts pressure on the Walshes' landlord Pat Beresford who he believes was responsible for the attack, and is delighted when Beresford contacts him offering information.
