Meet Jessie, one of Heathrow Airport's dogs helping to protect the UK border by searching for illegal cash, drugs, weapons and other contraband.<br />Since the springer spaniel started work at the west London airport last summer, she's sniffed out more than £1m in cash.<br />She's trained to detect the scent of ink on wads of banknotes as well as Class A drugs such as cocaine, heroin and ecstasy.
