My battery offence resulted in a fine and is spent in august will this always be on my enhanced crb?

im trying to get a job working with autistic children and although kids weren't involved in the offence and i never would hurt a kid why should i be deemed unsuitable to work with them it seems you need a money making crb or enhanced to defiantly keep you out of work yet there's plenty of people out there who abuse kids but there's no law in place to stop them having more