Abstract: A standard garbage receiving dumpster is provided with a locking bar disposed across its lid. A locking mechanism cooperating with the locking bar is added to the dumpster to prevent the locking bar from rotating when the dumpster is in an upright position. A lock is provided which when opened permits the locking bar to be disengaged from the locking mechanism to allow authorized users to rotate the locking bar and open the dumpster lid to permit the deposit of garbage therein. The locking mechanism is disengaged when the dumpster is in an inverted position to permit the lid to open and the contents of the dumpster to be removed.