the cops told son that if he doesn't help them with this they will charge him with endangering children(he sold a bags of weed to friends under 18), son is 18 they said they have text messages to prove, i have ur 20$ bag.. .etc. they want him to go to this guy and continue to buy pot like he has been doing. for like 6 more times. they said if he don't do this he is going to be arrested. they said these kids all told them...my son sold them pot. they have no pot on my son, only hear say. we are afraid if he don't do this they will arrest him. do the cops have a case to arrest son