The officer/subject interactions are almost unlimited. A sample is included here to clearly illustrate the relationship between the two as well as the general and dramatic difference between a motion that is an action (subject movement) and the catch up (reaction) motion of the officer.

Finger On Frame

Trigger Pull Reaction (sighted)

Subject Position at 0.0 seconds

Subject Position at 0.54 seconds

0.0 seconds

0.54 seconds