The latest developments on the cases featured during the main programme.
BBC One Northern Ireland, Northern Ireland HD only
BBC One Scotland, Scotland HD only
18/20 Officers at Southwark Council unwittingly uncover evidence of benefit fraud. (R)
Officers from the North Yorkshire Road Policing Group hunt down a gang of thieves.
Clive Anderson and guests discuss how the law might save lives on the roads.
BBC Radio 4
2/3 Centres on an interrogation of Ray Teret, accused of sexual abuse against girls. (R)
BBC Two except Northern Ireland, Scotland
BBC Two Scotland only
Michael Mosley looks at how scientists have probed the mind of the murderer. (R)