A "risqué" claim, certainly. Luckily I have evidence, and a nice sound theory to go with it.
Google Scholar yields numerous results on this topic. If you'd like, I can request any of the full texts and get you the specific details. Last year I wrote a paper on institutionalized police abuse, and in the course of my literature search, came up with a lot of research on police abuse of kin. Unfortunately I do not still have those specific articles. I am not suggesting all or even a significant number of police officers are abusive, but that they are predisposed to this type of behaviour. We all would be if we spent our days engaging in almost exclusively negative interactions with no way to release the pressure. "Community policing" has sought to counteract this feeling of negativity within and towards police services, but unfortunately has been bastardized by many departments and rendered just a cliché. Anyways, I (and the criminologists who's views I subscribe to) would not consider the police a useful information source.
I have a final exam in 30 minutes or so, I'll respond to your comments regarding legalization when I get home.