If they suspect anything they are allowed to report it...they may get in contact with the police and the police could get in contact with you and you may have bud on you....i do not think its a smart move to get the photos developed.

Im not completelly sure if this is fact but better safe than sorry.

My best friend from about a year ago and I took pictures together in my room and we were stoned, I never got those pictures back im more than curious if sum bud was in the backround. Course, nothing ever happend to me or her that got us in trouble but we could have.