The Thin Blue Line

Inspector Fowler is confident that his team can win the local pub quiz as long as he has his star player PC Habib. However, DI Grim wants to use her in a trap to catch Terry the Tank...

Grim asks Fowler if he can borrow Habib for an illegal entrapment operation. After some convincing Fowler reluctantly agrees, but is distraught when he realises she will have to pull out of the police pub quiz team.

Meanwhile, Patricia is getting suspicious of the amount of time Fowler and Habib are spending together. When Habib arrives for work disguised as a tart and tells Patricia that Inspector Fowler ordered her to dress that way, her blood begins to boil.

However, Fowler is too concerned with the quiz team and upcoming finals to notice. He's already lost Habib, and now Kray seems to be risking his competence. When Patricia refuses to take Maggie's place and Goody and Gladstone turn out to be too thick, he resorts to asking the criminals in the cells.

Back in CID, Grim decides to step up the operation and urges Habib go even further to get information out of the villain. Habib is increasingly uneasy with his methods and Fowler washes his hands with the whole business.

Things come to a head with Patricia over the matter of a new Royal Coat of Arms to be hung over the station's front desk, but the truth comes flowing out and it's Dawkins left looking the fool.

Grim is delighted when Habib and local criminal Terry the Tank arrive, handcuffed together. But the operation, it seems, hasn't concluded quite as he had hoped.