Google Earth is an amazing tool. You can see just about any part of the entire surface of the Earth. It's almost as if you become god-like.
It really does boggle the mind, and users quickly come up with interesting applications for it. Not surprisingly, some of them think of unethical - even criminal uses.
Take Tom Berge. He knew how valuable lead was, so he used Google Earth to find roofs in London that had tiles made from it. He then set about stealing the material, continuing for 6 months before finally being caught.
But just as it can empower criminals, it can also empower law enforcement. Cops in Switzerland, for instance, detected a marijuana crop while using Google Earth in a drug investigation.