Season 4 - Episode Guide

The series on environmental-health officers at London's Haringey council returns for a new eight-part series. Health inspector Yunes Teinaz visits a takeaway serving customers unwanted extras. Polish war veteran and rubbish collector Mr Trebus makes a last stand.

A pest control officer armed with sausages tackles a plague of rats, while at the mortuary the blood of a young drug user is tested for HIV in the second of the series following environmental health officers at London's Haringey council.

Eviction looms for a group of new-age travellers and their extended family of pot-belly pigs in the third of the series following environmental-health officers in north London.

A grocer selling live snails gets his produce confiscated by food inspector Dr Yunes Teinaz in the fourth of the series following environmental-health officers in north London.

A group of police cadets are introduced to a corpse and face theirfirst post mortem in the fifth of the series following environmental-health officers in north London.

Dr Yunes Teinaz suspects a plot when meat intended for the Muslim festival of Ede fails to arrive at a London butcher's.

The spectre of loneliness haunts pest officer George Whordley as he tries to helps a homeless man living under an arch.

In the last of the series, environmental health officers investigate a smell in a pianist's stairway, a food team tracks down an illegal food operation diverting meat intended for pets into the mouths of people, and Polish war veteran Edmund Trebus makes his final appearance.