The police in New Zealand and Australia seem to be a lot less agressive than their American counterparts. I don't ever hear of stories like the original post come from either country.
He ran a story about a run-in with some Australian cops while on a ride that is just mind-blowing in how different it is from similar run-ins with American police.
See here:
https://www.dcrainmaker.com/2018/03/getting-pulled-over-by-f...
What made is shockingly, unbelievably different is the email at the end where the cop admits his was wrong. That would never happen here.
http://www.abc.net.au/news/2018-04-03/melbourne-police-on-vi... http://www.abc.net.au/news/2018-04-23/former-asio-specialist... https://www.gladstoneobserver.com.au/news/public-hearing-in-...
The police in my city mostly target native americans, which commit the most crime here. But the cops aren't violent or forceful from what I've seen. Most of the time they just come out because someone is drunk and being a nuisance, so they come out and talk to the person/people and get them to move on from the area.
I'm not sure what happens with reserve police. You have to get a warrant to enter reserve property if you are city police or mounted. I think mostly they don't even bother.