A quite like this detective series. I read in a trivia section: The actors improvise all the dialogue. They are given the outline of a story and individual scenes, but it is up to them how they decide to attack it._

It's a very unique concept and interesting to watch.

I do wonder however if this show actually has someone to advise them of British police procedural facts.

I constantly see in the show, the detectives push their way into private homes without search warrants, also they arrest someone for murder with a minute piece of evidence, only to be found later not to have committed the crime.