I am curious about the arrest technique of having Brown turn around, raise his hands halfway, and walk towards an officer. We teach our Officers to have the person face away from the Officer, to interlock their fingers behind their head, to step back one step at a time from any building, vehicle, or obstruction which might conceal a weapon, to then kneel, to cross one ankle over the other, and to sit back on their ankles. Alternatively we have them face away, lie prone on the ground with their arms outstretched to the sides with the ankles crossed and raised 90 degrees into the air. Officers are to not approach until cover arrives. The suspect should not be directly covered by the muzzle of the Officer's gun. The muzzle should be pointed just below the target in case there is an accidental discharge.
Moving towards one of our Officers who is doing it right indicates that the suspect is not complying and is a potential danger.