From what I see the bog standard police man is armed with a colloapsable baton, pepperspray and cuffs. A few carry tasers but I don't think I've seen a police man with a gun since the July bombings a few years back.
Point is ordinary citizens, like myself would be shit scared of a policeman with a gun.
Right now they are a joke, and the law disentangle help them either, for example if a policeman questions me I can ignore him unless I am defienatly doing something wrong. If he wants to search me he has to have reasonable suspicion, none of the on the spot random search stuff otherwise I can put my public law hat on and give him a statuical ass whooping.