tycho wrote:
I have seen notices in church porches warning potential thieves that stolen items are trackable.
It's called Smart Water.
http://en.wikipedia.org/wiki/Smart_waterI was in a church last Sunday and one of the church wardens was telling me that they had spent a whole day coating virtually every moveable object in the church with it - even down to the internal door knobs.
The problem is that if the flags were ever stolen it would quite likely be to order and then they would end up in some secret, private collection (which undoubtedly exist). In this situation marking with Smart Water wouldn't actually achieve anything.
Nevertheless I quite like the idea of criminals being sprayed with the stuff to prove they were at the crime scene.
Personally I am prepared to leave it to the security professionals to decide if the risk of them remaining in the church is simply too great.
This comes from someone who had 2 short lengths of copper pipe stolen from the back of my house - worth about 50p. The disruption/danger was out of all proportion i.e thousands of gallons of water flooding the back garden and potentially a gas explosion. The current breed of criminals who are creeping around under cover of darkness truly do not care a jot!!
MB