The Rivers of London/Peter Grant is one of my favorite ongoing series and one of the things I like about it is the many different ways the stories are being told (novels, shorts, comics and there is also a free audio-exclusive). Also, it is British.
Detective stories includes four short stories of Peter’s Falcon cases as he recalls them while being interviewed for a detective exam. I liked them a lot as they make the wait for the next novel more bearable.
Detective Stories (Rivers of London Graphic Novels #4) – Ben Aaronovitch & Andrew Cartmel/Lee Sullivan/Luis Guerrero