Enforce the law blindly on civilians then break the law freely because cops are above the law. I don't care for John's view of medical marijuana, but I don't think that's fair.
I personally know local police officers who have tried to get people to work things out when disturbances came up. The police officers could have "done it blindly by the book" and could have made some arrests, but chose to give both sides a chance to work things out.