Abstract: A latching device consisting of three annuli held concentically together by means of cotter pins and inserted between the door handle assembly and the door surface being part of a doorway upon which door an existing mounted spring or dead bolt lock is installed such that a slide plate contained within a slot cut into the center annulus diameter can straddle the drive shaft of the existing lock when the slide plate is slid into the lock housing thus latching the drive shaft to lock housing, and conversely being unlatched when the slide plate is withdrawn from from the lock assembly, the whole being held in place by the cotter pins bearing upon the inside diameter of the lock mounting hole and thence clamped between the lock handle assembly and the door surface in its final installed condition.