Homicide by David Simon, the book that inspired TV hit series The Wire.
It's a doorstop, full of detail about procedures in the police service in Baltimore's crime-ridden streets. Not as entertaining as the show obviously!
I wouldn't recommend it really.
It was also the inspiration for the earlier series Homicide: Life on the Streets.
Underappreciated series, ahead of its time.
I really loved that book
Some of it is directly part of the story or is referenced in Homicide the TV show
I started watching the show again recently and it's great. Great writing and great acting. Noticed one episode Jake Gylenhalls appears as a kid, and his dad directed it.
I had to stop in season 3 as my dodgy box wasn't finding any links. Not sure if it's actually available for legal stream anywhere
The book I thought was a fascinating insight into that world, especially after watching the Wire a couple of times before I found it