Having lived in Europe (Belgium) this is a very realistic program both in terms of the law, the police and how they act. My own experience with both the French (driving too fast LOL) and the Belgian Police (they visit you at home when you first arrive to confirm the facts about your family, as an "étranger" (foreigner)).
This is a well paced story with interesting plot twists and unlike similar shows shot in the U.S., not everyone is pretty or rich. This is European TV at it's best. This reminded me a lot of "The Break (La Trêve) shot in Belgium, also on Netflix.
And to the guy who commented about not understanding Spanish....that's okay, except that this is in French LOL.