I know this is off topic but I was shown a thread on somebody else's computer about a bloke who had his lap-top stolen and he had programmed it so that when the thieves used it he could see on his new computer what they were writing and a picture of them and of the room they were in. Also their IP address.
I don't expect the investigation by the cops to last very long despite it probably being conducted by a rookie policewoman.
If any of you think it worth protecting your computer in this way for free, or is said to be, you simply go to "prey projects . com" and follow your forefinger.
Following your nose is no good.