8 GCA § 20.45: Peace Officer May Use Force to Prevent Escape or Overcome Resistance.

Any peace officer who has reasonable cause to believe that a person to be arrested has committed an offense may use reasonable force to effect the arrest, to prevent escape or to overcome resistance.

A peace officer who makes or attempts to make an arrest need not retreat or desist from his efforts by reason of the resistance or the threatened resistance of the person being arrested; nor shall such officer be deemed an aggressor or lose his right of self-defense by the use of reasonable force to effect the arrest or to prevent escape or to overcome resistance.