Sammielee, I don't know about other churches but now, as a Catholic, anybody working with children, including the priests, has to be fingerprinted, background checked, and take a class on child protection. I had to do it just to help out with vacation Bible school. The parish pays for it, in my case.
I really don't see why the WTS doesn't do it just to make a show of good faith, although they don't really have any.
St. Ann