Re: @Tony
How about cold blooded killers who just chop off someone's hand in order to gain access to their fingerprints so that they can clean out the creditcard?
Properly done biometrics check for bio-electrical activity. That's why, for example, Apple's Touch ID stuff fails when your hands are wet, or greasy, or if there's grease or something on the sensor. There ain't no electrical activity once you're dead or once your hand/finger got chopped off.
This, of course, means that a certain critical plot point in the latest Star Wars movie won't actually work, but that's Hollywood.
Biting the hand that feeds IT
