Abstract: In a device for the accommodation and retention of a lock part, in particular a belt lock of a safety belt, with at least one restraint device for the lock part, which has at least one movable latching element that can be brought into a retentive active connection with the lock part, and with an interrogation device having at least one electrical switching element to record the closing position of the restraint device, the electrical switching element is directly assigned to the latching element. The switching element has an actuating element projecting into the movement space of the latching element and is designed as a button that can be actuated by the latching element.