Sub in "law enforcement" for "police" if you want to be that pedantic, and I did say "historically".

If you want more recent examples, Chicago was disappearing people to black sites for interrogation this decade.

https://www.theguardian.com/us-news/2015/feb/24/chicago-poli...

and torturing suspects for decades, well into the 2000s:

https://www.theguardian.com/us-news/2015/feb/18/guantanamo-t...