Soo....how does a Police agency get to investigate themselves? Why isn't there a civilian oversite board to evaluate and investigate these Officer involved shootings and civil rights violations? This is such a tragedy and an abuse of power in the name of security. I would rather have no cops, than corrupt cops who would abuse the public and we are seeing this more and more.
There is: http://www.houstontx.gov/boards/ipob.html
You just have to understand that this town is an urban, liberal cesspool, not at all different in composition to the Chicago's and Detroit's of this country.
IOW ... designed just to give the citizens a warm, fuzzy illusion ... nothing more.