Bestselling crime writer whose work drew on his own experience as an LAPD detective

Joseph Wambaugh, who has died of cancer aged 88, was one of the most important US crime writers of his generation. Beginning with his novels The New Centurions (1971) and The Blue Night (1972), and the nonfiction The Onion Field (1973), Wambaugh’s books and their screen adaptations were built around the inner tensions of police work.

Wambaugh, himself a Los Angeles cop for 14 years, knew well the challenges officers faced in maintaining some sort of normality while trapped in the messy realities of their brutal and often irrational jobs. He revealed the strains this put on their lives, and the sometimes extreme means they took to relieve that pressure. He also dealt unflinchingly with corruption, both personal, among cops, and structurally, within the politics of the police department and the city the officers were sworn to protect and serve.