I can't speak to the legal phrasing, but I have filed a FOIA act request to LA County Sheriffs myself, and one code they site is CA 6254(f), which exempts "(f)

I can't speak to the legal phrasing, but I have filed a FOIA act request to LA County Sheriffs myself, and one code they site is CA 6254(f), which exempts "(f) Records of complaints to, or investigations conducted by, records of intelligence information or security procedures of [cops]" "intelligence information" is essentially things like files on suspected gang members. The contention seems to be that this is intelligence information on all drivers, and to that extent, all drivers are under suspicion of "everything".