The Auto Close Door Hinge is a not so newly developed idea that was made famous in world of prisons all over the world as it automatically closed doors without having the guard having to take his attention off the prisoner and thus causing a loss of a prisoner. This worked great especially if more than one prisoner per guard was allocated as well as the combination of the video and self surveillance cameras. It was good to use in cases of prison riots where sections could be closed off sealed without getting the guards in harms way unless it was really necessary. This later moved over to banks as…