A METHOD OF PRODUCING A MARKING-SUBSTANCE CONTAINING AMPUL, AN AMPUL AND AMPUL-FITTED THEFT-DETERRENT DEVICE

摘要

The present invention relates to a method of producing a marking-substancecontaining ampul and an ampul containing a marking substance and intended foruse in a theft-deterrent device for theft-attractive goods. The ampul containsa marking or staining substance and is intended to be arranged in the theft-deterrent device in a manner such as to be broken, crushed or destroyed insome other way and therewith release the marking substance enclosed in theampul when an improper or unauthorized attempt is made to release the devicefrom the theft-attractive article. According to the invention, the ampul (2)encloses an alarm strip (8) which can be sensed or detected by an electronicalarm system and which is inaccessible unless the ampul (2) is broken, crushedor destroyed in some other way such as to release the marking substance (4).The invention also relates to a theft-deterrent device which includes such anampul.