Help finding something

well if anybody remembers a while ago somebody made a thread that had a video about how cops violate peoples rights and stuff and how you can stop them from searchign your car when  you get pulled over and stuff.i hate making a thred to find a thread and i feel like a noob but me and my friends got pulled over last weekend with 60 beers in the trunk and were all 16..thank god he didnt try to search but i just wanna watch the video incase it happens again.thanks