Iowa Code § 704.13 : CRIMINAL LAW AND PROCEDURE — CRIME CONTROL AND CRIMINAL ACTS — FORCE - REASONABLE OR DEADLY - DEFENSES — Immunity TEXT PDF A person who is justified in using reasonable force against an aggressor in defense of oneself, another person, or property pursuant to section 704.4 is immune from criminal or civil liability for all damages incurred by the aggressor pursuant to the application of reasonable force. Iowa Code § 704.13 Added by 2017 Iowa, ch 69,s 43, eff. 7/1/2017.