Trip stitch circuit-breaker

A trip stitch circuit-breaker was a circuit that if was enabled in the psycho-kinetic threshold manipulator of the Daleks had the effect of preventing them from controlling their movement. This circuit was enabled by the DoctorDonna in the Crucible's control console during the Dalek Invasion of Earth first to some Daleks and then to all over the Crucible. (TV: Journey's End)