TV Guide Sky Witness Saturday

PC Greaves and his four-year-old German shepherd Riley track down a motorist who panicked when he saw flashing blue lights and ran off, while PC Whitaker and his dog Roscoe have to disarm a man who has a 12-inch knife. During a search of three vehicles used by a suspected drug dealer, sniffer spaniel Smut and handler PC Carlin find a wallet with almost £1,000 inside it hidden under a dashboard. Narrated by Ken Stott

Documentary following the work of Ireland's border force officers as they fight to stop gangs of organised smugglers from bringing drugs, money, guns, cars and even exotic animals into the country

Dominic Littlewood presents footage of a shocking attack with a knife on a 60-year-old cashier, who then locks the door to trap the robber in, and someone with sticky fingers in the pub till gets caught out. Plus, a man stealing wedding dresses is about to have his big day ruined

Dominic Littlewood exhibits footage a thief taking money from a family home caught on a spy-pen, as well as brazen burglars stealing furniture then a few minutes later selling it right outside the house. Plus, two muggers hot-footing it in the snow

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle drug runners, illegal immigrants and terrorists

The team investigates the case of a woman murdered during an emergency phone call to the operator, focusing the investigation on an apparently perfect parolee who seems too good to be true. As events unfold, it becomes clear the prime suspect may not be guilty, but nevertheless holds the key to catching the real culprit

Documentary following the work of Ireland's border force officers as they fight to stop gangs of organised smugglers from bringing drugs, money, guns, cars and even exotic animals into the country