Small, cheap, convenient recording devices potentially open up a whole new world wrt combating in-justice.
If I lived in the US, I'd wire up every inch of my car with cameras, to film criminals and cops alike. I'd have them all concealed, locked up and secure, and frequently streamed streamed to a remote server.
This is the real way to combat police injustice - a public pan-opticon!
If I lived in a bad neighborhood, I'd wire myself up everything I left the house.
Why the hell groups like BLM don't do this, I don't know; every bad cop is an legislative opportunity!