| 摘要 |
PROBLEM TO BE SOLVED: To provide a picking detector which can easily detect the wrongful unlocking of a door or the like. SOLUTION: The door A or a sliding door, an automobile, a safe, a locker or the like are locked with a key and a keyhole of a lock B is covered and pasted with an adhesive sticker having a cutting line to cut the sticker. Even if a criminal tries to neatly peel off the sticker having the cutting line to cut the sticker so as to unlock the door A using wire-shaped exclusive tools with the purpose to steal from a house in the absence of the occupants, a trace is left by being cut or torn halfway due to the strong adhesiveness. Or, by pasting a signature seal 3-A to a seam E of the door frame D and the door A, the trace is left same as that of the sticker even if the criminal tries to peel it off. Even if the criminal unlocks and resticks a similar seal to erase an evidence after a criminal act, the result of the genuiness or the falseness of the seal becomes clear by collating the signature identification seal.
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