Abstract: A composite molded plastic bag tie is disclosed for use in sealing bags such as money bags and the like. A bag temperproofing seal is provided having an elongated tie portion for encircling the neck of the bag in combination with a tie holder portion which mounts the tie and which includes a bag gripping portion and an identification tag. The tie, which is a commercially available cable or similar tie including an elongated toothed portion and a pawl portion, is mounted on the tie holder so that the pawl portion of the tie is enclosed in a sealed box which prevents tampering with the pawl so that the tie bag cannot be released or removed from the sealed bag without being destroyed.