My friend is applying for a job in a school, as a data manager and he has been told he has to have a CRB and also on his application form he has to declare any convictions, or warnings.
He has already had an enhanced CRB for scouts which came back clear, but he thought he had a caution when he was a student in the early 90s. It was a long time ago and I tihnk drink played a part so he can't really remember anything apart from the police "telling him off" 
He really doesn't know what to do about the application form. He doesn't want to put he had a caution on it because the scouts CRB didn't mention it so he's not sure if he actually did. DOes that mean the police didn't log it or could it have been something different, or maybe has it been deleted from the police system?
He's in a real dilemma, and would like some advice.
thanks for any ideas