Who's looking after your kids?

Are all of the adults working in school safe?
Since the dark days of the Ian Huntley episode, everyone that works in schools is now subject to a full Criminal Records Bureau (CRB) check. This at least ensures that any past misdemeanours, or worse, will come to light and their employment would be terminated.
Even parents who help in schools are required to undergo these sorts of checks, although assuming they are never actually alone with children some schools may go down the route of a less stringent ‘list 99’ check which will show up if they have any actual convictions.
Bottom line – our kids are probably better protected and safer in terms of the checks that are undergone on school staff than they have ever been in the past. At the end of the day though, I guess no system is failsafe.