How to cheat a full height turnstile?
By stopping the arm just before it is locked back after the first authorized person exited, the intruder can reverse the rotation allowing himself to enter and pass through. The worse news is that this loophole can be repeatedly used after single valid access to allow UNLIMITED unauthorized entry since there is no guard at the site to stop it. MAG SLAR (single-level anti-reverse) lock design can prevent this loophole in our full height turnstile.