The officer did what he was trained to do.
The
Minneapolis Police Department policy on "Maximal Restraint Technique" says it "shall only be used in situations where handcuffed subjects are combative and still pose a threat to themselves, officers or others, or could cause significant damage to property if not properly restrained."
Nelson also included Minneapolis Police Department training materials on the proper use of the "Maximal Restraint Technique," in which photos show demonstrations of officers simulating putting their knee on a handcuffed subject's neck. Nelson argued the training material appeared to contradict a statement made shortly after the incident by Minneapolis Police Chief Medaria Arradondo that he had not seen "anything that says you place your knee on someone's neck when they're facedown, handcuffed.