Policewoman killed by husband was a 'secret vice madam'

Special constable by day, vice madam by night. Nisha Patel-Nasri might have blushed had she heard the paeans of praise from some of London's most senior police officers in the days after her murder.

The Metropolitan Police Commissioner, Sir Ian Blair, led the tributes: "Her death has been a huge loss to the Metropolitan Police Service, which she served so enthusiastically."

At the start of her murder trial, Patel-Nasri's death was, to use a police cliché, an open and shut case: cheating husband organises wife's killing to collect life insurance. But a more complicated, wider tale has unravelled since the convictions of Fadi Nasri, her husband, and his accomplices, Roger Leslie, 37, a drug-dealing fixer, and Jason Jones, 35, who stabbed Patel-Nasri at the couple's home in Wembley and left her dying in the street in May 2006.