Sky Witness HD Wednesday

A reveller in Palma is admitted with a deep gash to his head and the surgical team helps a navy cadet whose broken elbow could spell the end of his career

How American border-protection agencies combat terrorism, drugs and illegal 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.

Follow Australia's traffic enforcers as they face high-speed chases, defiant hooligans, explosive crashes and out-of-control drunk drivers.

Follow Australia's traffic enforcers as they face high-speed chases, defiant hooligans, explosive crashes and out-of-control drunk drivers.

A behind-the-scenes look at an Immigration Removal Centre, where the UK Border Agency is preparing to carry out a mass deportation aboard a specially chartered flight

Jenny and Donovan endeavour to locate Peggy and find out who is responsible for the explosion

The headquarters is under serious threat when the notorious leader of a drug cartel - and one of the world's most wanted men - is arrested and his henchmen set out to free him

Marcel and Charles treat Lieu's gym buddy, while Maggie and Halstead help a robbery-homicide suspect

Following an injury in the aftermath of an industrial fire, Severide and Seager team up to investigate an anonymous tip-off. A possible new recruit to 51 gets tested at a call

A countdown of the most incredible, hilarious and spectacular real-life crashes in the world - all caught on dashcam

Fly-on-the-wall documentary following the lives of customs and immigration officers at Australia's biggest airports

Fly-on-the-wall documentary following the lives of customs and immigration officers at Australia's biggest airports

Fly-on-the-wall documentary following the lives of customs and immigration officers at Australia's biggest airports

Fly-on-the-wall documentary following the lives of customs and immigration officers at Australia's biggest airports

Fly-on-the-wall documentary following the lives of customs and immigration officers at Australia's biggest airports

The customs officers come across a musician who claims to have special powers that help her see the future

The customs officers meet a father and son from China who have four suitcases full of undeclared food

Fly-on-the-wall documentary following the lives of customs and immigration officers at Australia's biggest airports

The firefighters tackle a fire caused by a dropped jet engine and things get personal when one of their own is accused of a theft related to the incident

The Reagans' professional lives converge when an allegation of jury tampering against Erin intertwines with Danny and Baez's homicide case

McCall's online ad leads her to a mother whose son has been kidnapped. Delilah has a secret, and McCall and Aunt Vi are determined to uncover it

The team searches for a young girl who has been abducted while on holiday with her family. Maggie questions her relationship with Nestor

The team investigates a string of brutal pharmacy robberies and Halsted connects with one of the victims. Upton suspects there's more to the story

Aaron struggles with a moral dilemma when he is torn between doing what is right and what is best for his case. Meanwhile, Safiya closes in on Foster's drug smuggling scheme

Aaron confronts O'Reilly in court. Elsewhere, Maskins arranges for a dangerous inmate to be transferred to Bellmore

After Crosby's old army buddy is attacked in an apparent drug deal gone wrong, the team embarks on a dangerous quest for answers

Chris and Simon deal with a violent suspect they believe has tried to break into a car, while Daz and Rosie stop a van after a dangerous pursuit - but the driver refuses to give up

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