I would think that anyone with a misdemeanor conviction should be band from this type of work. After all the US Dept. Of Justice own study on sex offenders found that they are one of the lowest groups to re-offend, 3.5% are re-convicted within 3 years of release from prison. It also found that 95% of sexual assaults are committed by a person with no prior arrest record at all. And that 90% of sexual assaults are committed by a person well known and trusted by the victim with over 50% of them being done by a family member. Futher study found that those who had been in prison for non- sex crimes, upon release committed more sexual assaults then did released sex offenders.