First time Non-Violent Marijuana offender

Hello, I managed to talk my way out of 4 criminal Charges which included : Trespassing (Private property of the government...it was a well right beside a public park), Possession (of marijuana which in fact they did not find besides resin), Attempted statutory rape( because the person with me was a girl and a minor, even though she's just my best friend), and Carrying paraphernalia (A legal and paid-for glass bowl.) A federal Police officer and a school official found us near a park close to a school campus(but not school property). I was very forth coming, polite, and respectful, but he told me that I was not intelligent, and started to call me names, saying that I was stupid and that I should stop acting smart, I told him it wasn't right of him to say that and the school official started telling me not to mess with him. and that He didn't believe me that i was poor or not touching my friend or that i didn't have weapons. He told me that I didn't know what being poor was and that I wasn't poor and that my parents pay for me. Well no... My father doesn't support me financially, I couldn't make it into college, I don't have a job, I don't have a car, Hell I don't even have a license. He searched my bad and found a pipe and said I was smoking there, no I wasn't I was smoking before I got there and I just wanted to show my friend my perfectly legal glass bowl. What he was smelling was the resin rising out of the bowl. He sent the white girl away with nothing and proceeded to give me a hard time. I'm Hispanic by the way, this officer was expecting to find some stoned out of his mind punk with a chip on his shoulder attitude, but what he got was a Latino in a polo collar shirt and jeans with a young white woman. He charged me with Trespassing, Attempted statutory rape, possession(when i ddint' have any i smoked it all), and paraphernalia (my pipe) he took it away. and i was talking to him and he suddenly was like "If you say anything next, you'rre under arrest" HE TRIED TO PLANT EVIDENCE ON ME IN THE FUTURE. He said he was keeping this until the end of the school year since i was with a minor. and that if he ever even heard my NAME (even if its not drug related) he's bringing that back up on me. (well I knew he was going to bring it back at the end of the year anyways) He tried to act as if it were legal to plant it on me. Hows THAT for a patriot act... I was starting to walk away and i was like " maybe i could've just refunded it and got my 30 bucks back man i could use it for food or something. and he got all spastic. and told me Im under arrest unless i break it" and i was like ... "no you recycle it" cause I HATE littering. and he was like "no recycling you smash it on that wall... and all charges are dropped" well I had to fucking do it... I smashed it. but i hesitated.. i turned around and told him with a sneer "I don't appreciate you making me litter in exchange for my freedom. I told you before I don't pollute. have a nice day sir.. " and shook his hand, and he grabbed me and gave me a pep talk. we made a corrupt deal. HE broke the law by making me pollute. For God's sake it's close to EARTH DAY! anyways, This is what my concern is. Do Police officers really have the right to confiscate items and then deliberately use them against you for any reason, even if it is unrelated to the item ?