(57) The present invention relates to an anti-theft element in an anti-theft device which
is intended to be attached to a theft-attractive article such that said device can
only be removed from the article with the aid of a special release device. The anti-theft
element includes a fouling-substance ampule which contains a fouling substance and
which is disposed in the anti-theft element so as to be broken, crushed or otherwise
destroyed or opened so as to release said fouling substance if an attempt is made
to release the anti-theft device from the theft-attractive article without the aid
of said special release device.
The ampule (2) encloses a first fouling substance (B; D; G) having a specific fouling
property, and at least one second fouling substance (C; E, F; H) having a fouling
property which differs from the fouling property of the first fouling substance (B;
D; G). The chemical composition of the respective first fouling substance (B; D; G)
and of said second fouling substance (C; E, F; H) is such that the fouling substances
(B, D, G; C, E, F, H) will not dissolve in one another. The invention also relates
to a fouling-substance ampule intended for inclusion in an anti-theft element.
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