Abstract: A releasable turnstile lock with a star-type rotating body (4) which can be driven by a motor which is controllable by a control unit, from which body project two arms (1, 2) which are substantially rigidly connected with the star-type rotating body (4) and enclose an angle with a rotational axle of the star-type rotating body (4), with one arm (1, 2) projecting substantially horizontally from the star-type rotating body (4) in a locking position and blocking a passage (9), characterized in that a position of the arms (1, 2). In order to allow an easy return to normal operation after the initiation of an alarm, it is provided that a position of the arms (1, 2) releasing the passage is provided which is controllable by the drive motor and in which the arms (1, 2) are disposed in a vertical plane extending substantially parallel to the passage.