Border Security returns with more action from the men and women at the front line protecting Australia.
Go behind the scenes for an intriguing look at Australia’s busy airports where criminals and smugglers mix in with tourists and people seeking a new life across the ditch.
Cameras also capture the remarkable things that happen at international mail centres, in the field with immigration officials, and on Customs vessels and aircraft in the waters of Northern Australia.
You won't believe some of the things they find - or where they find them...
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