If another problem occurs, not only is the offender liable, but also the church for allowing the person to be in such a position after knowing about the past "minor offense."
Many decisions we make have long lasting after-effects. For the offender, this is one of those decisions that has far reaching consequences. While the zero tolerance might seem harsh, our childrens safety and emotional health must be placed ahead of the past offenders desires.
HOWEVER, if you're talking about a "minor offense" as something like a traffic violation.....we might not have any teachers, ministers, or ushers if we count that one.