Sky Witness Saturday

Officers prevent a student from entering the UK at Heathrow, and the team in Calais searches lorries for illegal immigrants

The team investigates a series of fake weddings and meets a Jamaican man who thought a marriage certificate would secure his place in the country

Police call on multiple units and the Eagle helicopter as they hunt for a stolen vehicle, and a cyclist cannot quite comprehend why he should not ride his bike on the motorway

A party of Kiwi revellers on a stag night ditch their Australian companion, and a car crash leads to some unusual behaviour on the side of the motorway

Dominic Littlewood joins officers as they search for the man responsible for a crime wave in Preston, and vandals clear up the damage they have caused

Revealing the terrifying moment a victim came face to face with a burglar. Plus, the case of a churchgoer who was caught making his own collection

A light-fingered neighbour is caught stealing from a vulnerable pensioner, and some tricks of the trade are revealed for keeping bag-snatchers at arm's length

Biosecurity New Zealand finds a hidden haul. Customs officers find a picture worth a thousand words - and tens of thousands of dollars

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

A teen's summer plans hit a roadblock and luxury items prove even more costly for a forgetful shopper. Meanwhile, a vagabond musician must prove his worth

The work of officers of the Canada Border Services Agency as its staff enforce customs, quarantine, immigration and finance laws

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

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

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

Cameras join officers from Australia's airports, harbours and mail services as they protect the nation from drug-smugglers, illegal products and unusual creepy-crawlies.

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

After Fiona puts herself in danger, Thony resorts to calling Arman for help. Chris struggles with the emotional aftermath of recent events

Frank contends with public outcry to defund the NYPD School Safety Division after a physical altercation between a school officer and a student goes viral

Mouch sets out to change his legacy and nickname, Ritter pushes Herrmann to see a doctor and Brett searches for the perfect wedding venue

The team goes after the killer of a man in witness protection. Remy is changed by what he discovers when he reconnects with his mother

Shaun is reunited with his family when he visits his dying father. Elsewhere, doctors treat a severely injured NFL star

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

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

An ornate frame is found to hold more than just a picture, two Canadians find themselves in a dead-end after taking an accidental detour, and a man is suspected of money laundering

A bag is found in a restricted area, an American traveller appears to have forgotten important facts about his past and a rugby player may miss his match