Question

how do schools protect students from predators?
require all applicants to pass a background check
trust job applicants to be truthful about any criminal convictions
limit potential predators to non - teaching positions
keep potential predators under observation when they work in the school

Explanation:

Background checks can screen out individuals with a history of predatory - related criminal behavior. Trusting job applicants may not be sufficient as they could lie. Limiting predators to non - teaching positions still allows them access to students. Keeping predators under observation while they work implies they are already in the school system, which is a less effective prevention method compared to background checks.

Answer:

require all applicants to pass a background check