| 摘要 |
A thief detection aid system utilizing an explosive device activated upon occurrence of abnormal conditions to disseminate a marking dye after a predetermined delay and to transmit a signal to assist in apprehension of the thief, and wherein the device simulates a bundle 11 of banknotes and is hollow at 15 to contain a battery electrical circuitry including an electromagnetic sensor for detecting an electromagnetic field indicative of the presence of an abnormal condition, a transmitter in a reinforced compartment, a store 16, 17 of dye and associated detonator, a switch for activating the detonator as well asthetransmitter, and time delay means to delay activation of said detonator. |
