Rest assured, if you're a local (of a foreigner for that matter) and piss the cops off, you'll see a swift and serious response. Mind you, there are three cadres that i've seen in this country; the army, the police and the bureaucratic arm. Each of these cadres will fall on you like a ton of bricks if you piss 'em off. The only way out of a bad situation is to have connections to one of the above gangs. (And they ARE all gangs.)