Summary Believing for the moment that Milton Jones is innocent Walker decides to use him as a helper in the enquiry. DNA and forensic evidence brings in a likely suspect but unfortunately Milton fails to identify him clearly in the police line-up. Roisin meanwhile discovers that the victims were linked by a night club though staff are hostile when she investigates it against Walker's better judgment. She is also having an affair with Neil Dench, a barrister in the case, and when it looks as if Milton is in the frame again, the relationship is seen as injurious to the trial's verdict.

• Crime
• Drama
• Mystery