That's totally wrong. All policemen in Germany together - about 250,000 women and men - use in a normal year much less than 100 shots (including warn shots) and kill normally less than 10 criminals a year. And in a normal year no policeman has to die because of shootings - what doesn't mean it do not happen serios tragedies from time to time.
Your discussions about weapons in the USA is absolutelly not comparable with discussions in other countries. Your problem with weapons is basing on ideology and is not only a pragmatical problem as it is in Germany for example.