How do you defuse a human bomb?

Question

Hi, I'm an LAPD cop trapped in a runaway train with a female hostage whom I am unexpectedly attracted to. Unfortunately, the mad bomber (whom I have already eliminated) has placed a ticking bomb attached to a vest she's now wearing.*
Okay, I was just kidding. But my question is: if this was the scenario, how do I go about defusing a human bomb? I want actual bomb squad procedures, so no nonsensical answers, please. How do REAL bomb defusers go about dismantling a live explosive?
*Bonus points for spotting which movie this scenario is derived from.

Answer 1

Obviously it is the end sequence of the movie "Speed" with can't act I mean keaneau reeves and dennis hopper.

Anyway, A bomb is still a bomb and follows under the same guidelines regardless of whether it's on a human or in a car etc. It will have an explosive medium--the part that goes boom, and a detonating device, like a blasting cap which causes the explosive to go boom, and possibly a timer which tells the detonating device when to detonate, and a triggering device. And a power source for all those parts requiring an electrical impulse.
The procedures used usually try to remove power from the overall device, if that is not possible, try to prevent the electrical impulse from making it to the trigger or detonator. If all else fails, take the device somewhere that will cause minimal damage and blow it up in a controlled setting...sorry if this means eliminating the hostage.

Answer 2

watch the rest of the movie.