I don't know if this helps, but in my county in Texas they state in the paperwork that to be a Cadet Corrections Officer the minimum age is 18. Not sure if that helps though.
"Damn it, junior"
"Nearly all men can stand the test of adversity, but if you really want to test a man's character, give him power." -- Abraham Lincoln
"The basis of all morality is duty."--Robert Heinlein
"The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants." --Thomas Jefferson