Should British police officers be armed?

No. No they ought not be.

Do you know the present system for a cop to be guaranteed to use a gun (I expect you mean guns furnished, not simply pepper shower and implement and so forth.)?

(From memory, may not be right) It includes taking in any event a year where a progressively experienced officer who additionally is affirmed to utilize a gun goes with you, numerous long stretches of preparing, and a few confirmation tests, notwithstanding standard tests to guarantee you are as yet precise and still pursue the rules. Those are measures I am alright with realizing the police need to pursue.