IA I.C.J.I. 400.20 Justification – Elements – [Citizen's] Arrest of Another Committing a Public Offense.
Iowa J.I. Crim. § 400.20 (2018)
Iowa Criminal Jury Instructions
CHAPTER 400 JUSTIFICATION
400.20 Justification – Elements – [Citizen’s] Arrest of Another Committing a Public Offense
A person is justified in using reasonable force if [he][she] reasonably believes the force is necessary to make an arrest of another who has committed or attempted a public offense in the person’s presence.
If the State has proved any of the following elements, the defendant was not justified:
1. A public offense had not been committed or attempted in the defendant’s presence.
2. The defendant did not reasonably believe the force used was necessary to [make the arrest][prevent serious injury to another].