HELP MY GIRL FRIENDS EX'S PUT NAKED PIC UP OF HER ON FACEBOOK WHAT CAN WE DO?

If the police won't do anything, then the only recourse would be a civil suit. Involving an expensive lawyer. And be prepared for your girlfriend to have to explain how he came to have those photos. Yes, I got "She did not know he took the pic so we think he took the pic when she was drunk or he was pretending to be texing on his phone while she was getting dressed and took them.", but his attorney will not leave that unchallenged. Especially the acknowledged fact that she apparently gets drunk with some regularity. (Just thinking like his attorney here.) This would not be easy for her. Would she go through that? Do you want her to? Sometimes it's best to just get it behind you and move on. And try to have some faith that justice will find those who deserve it.