J.M. Gregson, a Lancastrian by birth and upbringing, was a teacher for twenty-seven years before concentrating full-time on writing. He is the author of the popular Percy Peach and Lambert & Hook series, and has written books on subjects as diverse as golf and Shakespeare.
Gregson doesn't play completely fair, but as a procedural featuring a maverick lead who's a kindred spirit to Peter Lovesey's Peter Diamond, it certainly succeeds. Publishers Weekly