Hillbilly brings out an interesting point regarding the police and the carrying of firearms:
-In the USA, where all police officers carry guns, 90% of them will never ever have to even draw the weapon from its holster.
- In New Zealand (and I suspect in the UK as well), where police do not as a matter of routine carry guns; most will at some time in their career have to use one.
I can't speak for the UK, but the skills of the NZ cops with guns is close to abysmal (that from a relative, who used to be a firearms instructor at the Police Training Academy).
Most police having to at some point in their career use a firearm, yet most having little or no skills in their use - sounds like a certainty that screw-ups will occur!
Jack.