Border Security: Australia's Front Line

Officers are worried that a Chinese national may be a drug trafficker when they discover her unusual movements. A South Korean student is pulled aside over undeclared cigarettes.

Authorities are concerned about an erratic Chilean woman, whom they suspect is trafficking drugs. A Malaysian man's bags test positive for traces of narcotics.

An unsuspecting elderly couple are found to be carrying a supply of something illegal and possibly deadly. Also, biosecurity catch a Vietnamese couple with a bag full of restricted items.

The man who set up two elderly Australians is caught at the border. Also, a man is travelling on a Chinese passport which officers believe could be fraudulent.

A man arrives from Vietnam with some very unusual items. Biosecurity officers pull aside a woman from China who has a massive amount of high risk items.

The Border Force compliance team execute a thrilling pre-dawn raid on a north Queensland farm house as they search for illegal immigrants.

A drug detector dog leads officers to three Taiwanese students and the discovery of an inhumane substance in their possession. A Chinese passenger is caught red handed with concerning animal parts.

A detector dog leads officers to a family arriving from Cambodia and a massive concealment. Also, a passenger arriving from the middle east causes biosecurity concern when he fails to declare.

The reaction from a drug detector dog and a positive swab test has officers on high alert. An Italian man is found carrying something that may threaten Australia's biosecurity.

Officers are put on high alert when an ex drug addict claims to be trafficking heroin into Australia.

A young Australian seems to be up to something illegal and a Chinese couple are potentially hiding something that could have devastating consequences.

A group of travellers arrive with an unusual story. Biosecurity officers find a dangerous concealment but things get heated when they are caught red-handed.

Officers are concerned when they find drug paraphernalia in the luggage of a young Peruvian woman. An Indian man looks to be lying about his intentions while in Australia.

Border Force Officers patrolling off the Kimberley coast encounter several vessels who may pose a threat. Officers at the mail centre are confronted by a suspicious package.

Drug Detector Dog Rusty puts his incredible skills to the test. A woman arriving from Singapore refuses to open her suitcase when stopped by Border Force and officers want to know what she's hiding.

A major bust by Border Force officers when a New Zealand man is stopped at the Border. Officers are shocked to find an enormous amount of pills when a family are pulled aside for a baggage search.

A man arriving from Columbia appears extremely nervous and behaves erratically when his belongings are tested. The Border Force compliance team execute a pre-dawn raid in South Australia.

Border Force stop a young mother arriving from Vietnam and find her shampoo bottles contain a sophisticated concealment of illicit goods. A package from Ghana contains a gruesome biosecurity risk.