Great lessons (plural) for physical confrontations to be had in the 16 second to 19 second time frame of this vid, particularly 17 second mark.
Cop steps into assailant - right foot - lowers body weight by bending knees, grasps assailant, straightens legs to lift attacker off ground, twists woman so she hits ground horizontally.
Simple, effective techniques anyone can learn and perfect with application of time to practice and willingness to learn.