Reviewing an evidence video of a call just for routine testing (of server back up). Observed my Officer "direct a subject forcefully to the ground". I pulled him in my office and went through the case/video, and wrote him an exemplary performance note. At the onset of investigative contact between my officer and the suspect, suspect raised his voice and both his hands in a clear combative posture. Officer instantly "directed subject to the ground and secured him". I commended him on his excellent observation, decision making, tactics, and officer safety. Thanked him for all he does and told him this would be in his file for yearly performance review.