Justice In Distict 13

     In District 13, in the first book at least, I think that the Peacekeepers make their own version of the Capitol's rules. Not completely, of course. If they see someone walking through the square with a Down With The Capitol sign, that person would be severly punished. But when it comes to hunting, or the black market, they turn their heads. In their minds, it's okay.
     You see, in the Capitol, survival is a very real concern. Food is a precious commodity, and the Peacekeepers, who one may say are the footsoldiers of the capitol, still have to live in the same conditions as the inhabitants of Distict 12. Sure, it may be slightly better- but not by much.
There are many times in the book where we are given scenes of the Peacekeepers mingling with the citizens of District 12, often breaking the law right beside them. On page 5, Suzanne Collins even came out and said it- "Most of the Peacekeepers turn a blind eye to the few of us that hunt, because they're as hungry for fresh meat as anybody- in fact, they're among our best customers." However, people in the District are still wary of them.
     That's because the Peacekeepers living in District 12 adapt to the customs of District 12. It's just like, in Districts 1, 2, and 3, the Peacekeepers turn a blind eye to the training of tributes- if something's just a given in a District, the Peacekeepers adapt to it, because, at the end of the day, even though they're there in uniform, they live there too.