As parents we have diligent about finding out about exactly who we are entrusting our kids to for an afternoon or day or 1 week session at camp. I came across this blog article that gives tips on what kind of questions to ask when considering camps. One of them has to do with background checks and screening, but the author discusses other subtle signs to look out for when making the decision about kids camps.
http://www.campgurus.com/blog/