Why don’t they just take the firearms from police officers and replace them with tasers, police don’t need to have guns?

 Because criminals carry illegal guns and police officers have the Right to protect themselves.

The criminals would LOVE that.

In UK, cops are REAL MEN and they don't NEED to carry a gun.  They DON'T carry a gun because they're not ALLOWED to carry a gun.  Britain has A LOT LESS crime than this fascist shithole.  British cops are exttremely well trained in martial arts and I have seen them in action at the football ground on a Saturday many times.  They make Chuck Norris look like an amateur.  They also use dogs (which they get from the pound) for a lot of things.  Only DICKLESS EUNUCHS that ARE american cops need to have a gun that they're not man enough to wield with ANY degree of responsibility.

If WE don't 'need' guns, then cops do not EITHER.

@Gary: When criminals WITH GUNS come to your door, how will YOU defend yourself and family? You are such a MORON! Obviously a liberal fool!

But criminals do need guns right.

The police in London used to not carry guns. Now they are all armed.

Why? because criminals with guns kill cops with tasers. 

Oh yeah, criminals with guns also rob and kill people who are also unarmed.

What a brilliant mind you have

Take away the police's firearms and you will have a free for all of crime. The knowledge that police can and will shoot them under certain circumstances probably prevents more crime than any other aspect of law enforcement.

of course they don't ... and you don't need police either -- until a couple of armed thugs break into your house one 2am

Why don't people know they shouldn't resist arrest? Police with guns can get nervous. Making people with guns nervous isn't a great idea.