Anti drill chemical/pyrotechnic relocker

[unlisted]

My own idea was glass pins pressure filled with marker dyes such that a lock bump or tampering would cause the dye to spray out the keyhole hopefully marking the perpetrator and leaving definitive evidence of tampering .

That's a pretty good idea you got there. They'd have to be done just right, so some poor homeowner doesnt jam his key in angrily for whatever reason, and spends days scrubbing dye off

There have been locks with this type of system before (dye spraying)

There have also been locks made that will release a poison gas if tampered with. This is going back a couple of years thou.. (at least 100 years ago, etc)

[UnlockD]

There have been locks with this type of system before (dye spraying)
There have also been locks made that will release a poison gas if tampered with.

Really? That's pretty interesting - I'm going to have to do some poking around on google. The poison gas one would be a nasty preventitive measure in times of war.

[xlr8ed1]

On the point that no relocker device has been made for a door cly.
I have encountered old chubb locks on doors with the detector lever inside the lock.
I would class this system as a type of relocker, others might not though?
Any thoughts on this?

[Raymond]

About a year ago I repaired an old safe in a grocery store that still had the glass teargas tubes hanging inside the safe door. The door cover had been removed who-knows-when and the tear gas tubes were VERY bumpable by any casual user of the safe. I removed them as being too dangerous to leave exposed.

US military did have one 4-drawer file safe that would flood the inside with black dye with any attempted penetration of the lock area.

[Gozzo]

About a year ago I repaired an old safe in a grocery store that still had the glass teargas tubes hanging inside the safe door. The door cover had been removed who-knows-when and the tear gas tubes were VERY bumpable by any casual user of the safe. I removed them as being too dangerous to leave exposed.

how old was the safe ? and does anyone know if they are still made ? Would most definetly be illegal in Australia.

[Raymond]

I am sorry for not seeing this question sooner. I remember only that the lock was a Yale with a geared fence. I suspect the safe was made in the 1930's.

[mh]

On the point that no relocker device has been made for a door cly

Also, because many Euro cylinders are not very secure against breaking off, lock cases (like this: http://www.schluesseldienst-schuele.de/ ... esser.html ) exist that will re-lock when the cylinder is removed.