This is a superb drama about UK cops solving crimes as well as getting involved persoanlly with them. In addition to the crime being solved, we also meet the people, both cops and criminals and judiciary, all of whom are worth meeting for both good and bad reasons. Then we go to court to see how the case is resolved. The cast is outstanding in all three of the series I have watched. The line between right and wrong occasionally gets blurred, just like in real life.
I hope to get all the seasons before long, and I expect that I'll be watching them again and again.