Taming the Alien — Ken Bruen

Detective Sergeant Brant and his boss, Inspector Roberts, are known as the 'R&B' of the Metropolitan Police - and they're as sleazy and ruthless as the villains they are out to catch.
Taming the Alien is the second book in Ken Bruen's groundbreaking 'White' trilogy, populated by just as lowdown a group of lowlifes, wideboys, and old fashioned south-east London villains as we met in a white arrest.