im not sure if they themselves can search your belongings because when i got ratted on (dont we all love jr/high school kids ) they brought in a badge and he had to be present during the search of my stuff and locker took place. Luckily i had gotten word of the snitch and stashed my bud pipe and switch in my shoe and they didnt check there. Id do what they say and brown nose the shit outta them, tell them that your diploma means alot and you just made a bad choice and are sorry and that you really would appreciate it if they would work with you instead of just booting your ass out(not in those words obviously)

good luck fucko, next time dont bring that shit to school. Learn from this and move on.Smoke joints if u gotta!