Strange though that the police is almost non-existent in the series...
At some point they get noticed, after all in real life it took years before they caught Paolo, the Italian police had no idea that he was one of Naples’s most powerful crime bosses.
My theory is, and this is just my own personal theory, but the creators of the show had a decision to make in regards to the police. Yes, in real life more people went to prison. But in television they need to have an exciting scene or a big moment. So when they come to the point where someone has to go away, it is more exciting for it to climax with offing the person. The negative with this is that there is no coming back from it. Once they're gone, they're gone. So now there is no chance of those people returning to the show. Pietro getting arrested earlier in the show allowed him to return. Now we don't have the curiosity if he'll return... but, boy that was exciting when he got popped by Ciro!
