Imagine a situation where a elementary school hires a teacher. They find out that the individual has been investigated several times for sexual assault etc. but

Imagine a situation where a elementary school hires a teacher. They find out that the individual has been investigated several times for sexual assault etc. but the police were never able to bring charges, (which is extremely common). This sort of policy comes from decades of experience with the church, Scouts etc. having to deal with thousands of these types of scandals.