TV Guide Sky Witness Thursday

The Proactive Squad from Thames Valley Police use unmarked cars fitted with on-board video cameras to give an insight into vehicle crime and how it can be prevented, featuring footage of dangerous drivers on the overcrowded roads

Chris and Simon arrest a biker who is armed with nunchucks, while Charlie and Ruffy pursue a boy racer. Elsewhere, pensioners cause problems on the road, and shopkeepers in America fight back against would-be thieves

Another edition of the fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports, following customs and immigration officers as they go about their daily business of tackling drug runners, illegal immigrants and terrorists

Another edition of the fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports, following customs and immigration officers as they go about their daily business of tackling drug runners, illegal immigrants and terrorists

London's Metropolitan Police dog unit tests the skills of its leading specialist search dogs, pitting spaniels Diesel and Billy against each other as they hunt for hidden heroin. On the streets of north London, shift leader Pete Madden puts his Alsatian Brodie in the line of fire when they target two armed robbers, but as the trail runs cold they find themselves in pursuit of a gang of car vandals. Ken Stott narrates

A conman is found beaten to death in a hotel room, prompting Goren and Eames to look for a group of investors he swindled. Starring Vincent D'Onofrio, Kathryn Erbe and Jamey Sheridan

Under suspension pending a psychiatric evaluation, Goren places his life and career in jeopardy by working undercover to take down a high-profile drug-dealer - and expose two corrupt police officers in the process. Crime drama, starring Vincent D'Onofrio and Kathryn Erbe