No person shall, without justification, commit any of the following:
1. Pain or Injury. Any act that is intended to cause pain or injury to another or that is intended to result in physical contact that will be insulting or offensive to another, coupled with the apparent ability to execute the act.
(Code of Iowa, Sec. 708.1[1])
2. Threat of Pain or Injury. Any act that is intended to place another in fear of immediate physical contact which will be painful, injurious, insulting, or offensive, coupled with the apparent ability to execute the act.
(Code of Iowa, Sec. 708.1[2])
An act described in subsections 1 and 2 shall not be an assault under the following circumstances: (i) if the person doing any of the enumerated acts, and such other person, are voluntary participants in a sport, social or other activity, not in itself criminal, and such act is a reasonably foreseeable incident of such sport or activity, and does not create an unreasonable risk of serious injury or breach of the peace; (ii) if the person doing any of the enumerated acts is employed by a school district or accredited nonpublic school, or is an area education agency staff member who provides services to a school or school district, and intervenes in a fight or physical struggle or other disruptive situation that takes place in the presence of the employee or staff member performing employment duties in a school building, on school grounds, or at an official school function, regardless of the location, whether the fight or physical struggle or other disruptive situation is between students or other individuals, if the degree and the force of the intervention is reasonably necessary to restore order and to protect the safety of those assembled.
(Code of Iowa, Sec. 708.1)