The original Collection boxsets contained sole images of PC Reg Hollis and DS Ted Roach.

Other multi part plots, rarely seen on the series prior to this year, saw the hunt for a child serial killer as well as an affair between pilot star WPC June Ackland and the show’s first DCI Gordon Wray.

A number of Audio Commentaries for Series 6 episodes have been recorded with cast and crew, including stars Larry Dann (Sgt.

Cathy Marshall), writers Russell Lewis, Garry Lyons and J.C. Wilsher, camera operator Alison Chapman and producer Tony Virgo.

Martella disappears whilst hunting robbery suspects, causing a headache for Peters, who has come in to cover CAD on his day off.