Why does the Anchorage Police Department consistently "shoot to kill" vs. "shoot to maim" when in confrontation with someone?

I've lived in Anchorage for years and have seen a definite shift. I do not mean to disparage our good police force but am just looking for the answer.

I am not anti-guns in that I've owned one for a number of years. I also took lessons for its proper use.

-- Jodie Clarke

Anchorage