My question involves criminal law for the state of: NEW JERSEY. I was pulled over then arrested for having less than a half of a gram of cocaine in my possession which i already had on my persons prior to going to a friend's house, apparently his residents was under surveillance which is why I was pulled over. When I was questioned by the police and asked if I purchased it at my friends house I told them it was my cocaine and I definitely did not. Fast forward to my charge being downgraded to a misdemeanor. As of recent a police document was given to my friend and states that I told the police I purchased it from him which now portrays me as a "rat" and "liar". How can they document and state the exact opposite of what I said? What do I need to do to clear my name of something that isn't just frowned upon where in from but makes me a leapor or even worse?