http://www.cracked.com/article_18620_6-completely-legal-ways-cops-can-screw-you.html
Warning: Language
We are so lucky to be living in an era of law when it's no longer common for, say, suspects to be interrogated with live cobras tied to the ends of nightsticks. Unfortunately, there are still many colorful ways the police can royally screw you while Lady Justice shrugs.
Warning: Language