Description

In this study the subject was positioned so they were in front of the camera and facing at a 90 degree angle to the officer/camera, with a weapon in their strong hand and positioned down by their thigh. They were instructed to do the 90-degree turn and during this turn to actually point the weapon at the officer/camera and pull the trigger. The researchers were not studying the biomechanics of the motion, but simply beginning to establish the time parameters of the motion. It is noteworthy that in this as well as in all the other motions studied each person had their unique way of doing the general movement. Some subjects raised the weapon toward the camera/officer pulled the trigger and turned; others dropped or ìchargedî their body then started to turn and raise the weapon all in one motion; others started to turn first and then raised the weapon. Some subjects turned by almost spinning in place and then running away. Others ran and turned and took more than 10 yards to reach the shoulder ìsquare backî position. The timing of the motion started with the first frame the weapon began to move as the subject started to bring it into motion from beside the thigh. The timing stopped when the subject was within 10 degrees of a full square back position facing away from the officer/camera.