So funny thing, Seattle Police Department did a pilot for AI that did sentiment analysis on police audio and looked for things like racial slurs. They pretty quickly disbanded the project and destroyed the evidence.

https://www.seattletimes.com/seattle-news/law-justice/decision-to-halt-program-analyzing-seattle-police-bodycam-video-under-scrutiny/

(IIRC some folks requested info from the pilot and they claimed to have deleted it.)