Abstract: A locking device is provided which is configured to mount to a frame having a locking bar receiving surface therein, which includes a housing for an enclosure with a door opening and a door and having a lock for locking the door to the enclosure about the door opening. A first bar is removably disposable within the locking bar receiving surface and when received therein the device is in a locked position and when removed therefrom is in an unlocked position. A second bar is at least partially movably disposed within the enclosure and is in a laterally spaced and parallel relation with respect to the first bar. Another bar interconnects the first bar and the second bar for providing that the bars move parallel to one another to and from the locked position to the unlocked position. Also, a second lock for locking the device to the frame is disposed within the enclosure having limited accessibility when the door is open.