Sky Witness HD Wednesday

Officers at Heathrow's Terminal 3 question a passenger from Johannesburg arriving in London on a tourist visa, suspecting he may be planning to work in the country

A woman returning from a trip to China has a tantrum, and officers want to know why she has business cards for a Sydney brothel and passports for three unknown Chinese women

A piece of salmon comes up positive for cocaine, and officers investigate when carpets from Syria have something suspicious woven through the fabric

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.

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

Documentary following the work of customs officers in the south of England as they tackle smugglers in ports, airports and at sea

Documentary following the work of customs officers in the south of England as they tackle smugglers in ports, airports and at sea

Traffic officers rush to reach the scene of an accident which gridlocks the road, and police forces use the A1 to catch shoplifters on the run

The team attempts to extract key information from a vulnerable 9/11 widow. Scola is reminded of his brother's death

The team come up against a citizen who believes they are above the law and deal with a domestic terrorist plot. Angela and Wesley argue about their predicament

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

Fly-on-the-dashboard documentary showcasing outrageous road disasters, captured in video form by drivers' in-vehicle dashboard cameras

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 teenage driver takes officers on a wild, stolen car pursuit and two men are suspected of stealing thousands of dollars of razors

Logan and Wheeler investigate when a popular video blogger is apparently kidnapped during a live broadcast, but all is not as it seems. Larry King appears as himself

Matty questions the paternity of the man claiming to be Alfie's father, while Olympia tries to cover up her ex-husband Julian's involvement in the Wellbrexa case

Amy and Gina team up to help a victim of domestic abuse, while TJ finds himself in the spotlight when he, Sonya and Liz treat a social- media influencer

Officers John Nolan and Nyla Harper are assigned to a community policing centre in a bid to rebuild the reputation of their station. Brandon Routh guest stars

The detectives search for the missing daughter of the NYPD's first deputy commissioner, but Goren is distracted as he struggles with a personal crisis. With Michael Biehn

The team attempts to extract key information from a vulnerable 9/11 widow. Scola is reminded of his brother's death

Stabler deals with big changes after an undercover assignment and Bell hires an adviser whose technology could revolutionise investigations

Logan and Wheeler investigate the death of former child star Alvin Stevens, following a trail of clues that leads them to Albanian mobsters and a DVD counterfeiting operation

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

The Proactive Squad from Thames Valley Police uses unmarked cars with video cameras on board to give an intriguing insight into car crime and ways it can be prevented