IDK where I’ve read that… should have double checked before posting, my bad.

Quick fact checking:

US police kills some 1,281 people last year (wikipedia).

1,281/340,110,988*100,000 gives around 0.38 police killings/100,000 people, which is below homicide rate in EU.

I couldn’t (be bothered to) find out what the overall European homicide rate actually is (it also depends on what you count as “Europe”), but Germany is at around 0.8, France at 1.8, Italy at 0.57, Spain at 0.9 and Poland at 0.8 (these are the five most populous countries). So… let’s guesstimate it at around 1? (numbers are from this random source).

So US policemen are only 38% as deadly as European criminals