Sky Witness +1 Wednesday

PC Dave Smith and his Belgian shepherd Kelly race to the scene of a burglary at a pet-food store and PC Adele Gibson is joined by her dog Diesel to take part in a dawn drugs raid

Cameras follow the work of staff at the British Commission in Lagos, Nigeria, and workers at a steakhouse in London's West End are interrogated

A drug-runner conceals his stash in the most unlikely of places, and a heartbroken Frenchman has fallen for Australia, but for Immigration it is time to separate

Officers make a disturbing discovery in a Chinese student's bag, and a devious passenger will try anything to get past immigration

Follow the work of the New Zealand Customs agents in their quest to prevent illegal items passing through the country's borders.

Follow the work of the New Zealand Customs agents in their quest to prevent illegal items passing through the country's borders.

The work of British Transport Police's canine units, which help monitor thousands of miles of railway and underground track

Trouble looms for a young Asian woman carrying someone else's bag, and a pair of Canadians return from a concert in California with more than a T-shirt

A hostile traveller spits out her true intentions, while a farmer's choice of crop makes him inadmissible. Plus, mail room officers smell a rat

Scottish Police respond to a caravan which has overturned and crashed, and a learner driver has a difficult day on the roads

OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists.

The team joins forces with the FBI to stop bombs scattered throughout the city by a suspected terrorist

Sgt Grey supports Nolan as he takes steps to become a training officer. Tim and Lucy make Mother's Day plans

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

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle criminals

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle criminals

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle criminals

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle criminals

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle criminals

Fly-on-the-wall documentary accessing the world of national security at Australia's biggest airports as customs and immigration officers tackle criminals

A river rescue proves challenging to local police, and a high-speed motorcycle chase leads to a sad confession by the rider

Goren and Eames investigate the murder of a diver whose body has been washed ashore on Coney Island, only to find themselves caught up in a plot to prevent the truth being revealed

Matty and Olympia find out the executive committee has flown in after learning of a security breach at the firm, and the team takes on a case involving rival restaurants

Jake processes his grief and feelings for Amy, with a flashback revealing his plan to leave Westside and why he stayed. Charlie goes too far with the plan to destroy Amy

Professor Ryan's car window is smashed following a series of mysterious notes, so Nolan guards her house overnight. Chen is jealous of how Tim treats his new rookie

OA is forced to confront one of his biggest fears when the team discovers that deadly sarin gas may have been sold to terrorists.

Detectives Logan and Falacci investigate the murder of an obstetrician found posed in a ritualistic fashion, spread-eagled on an examination chair

A bungled diamond robbery leaves three innocent bystanders dead, prompting the team to embark on a desperate hunt for the killers

The Thames Valley Police provide a fascinating insight into car crime and its prevention. Plus, shocking video footage captures dangerous drivers in action

Police officers use unmarked cars fitted with on-board video cameras, offering an insight into vehicle crime and how it can be prevented

Police officers use unmarked cars fitted with on-board video cameras, offering an insight into vehicle crime and how it can be prevented

Police officers use unmarked cars fitted with on-board video cameras, offering an insight into vehicle crime and how it can be prevented