1. For purposes of this section, unless the context otherwise requires:

 a. “Government-issued identification” means any of the following:

 (1) An unexpired driver’s license issued by any state, territory, or district of the United States.
 (2) An unexpired identification card issued by any state, territory, or district of the United States.
 (3) An unexpired United States passport.
 (4) A naturalization certificate issued by the United States citizenship and immigration services.
 (5) An unexpired permanent resident card, also known as a green card, issued by the United States citizenship and immigration services.
 (6) An unexpired employment authorization document issued by the United States citizenship and immigration services.
 b. “Peace officer” means any of the following:

 (1) Sheriffs and their regular deputies who are subject to mandated law enforcement training.
 (2) Marshals and police officers of cities.
 (3) Peace officer members of the department of public safety as defined in chapter 80.
 (4) Special security officers employed by board of regents institutions as set forth in section 262.13.
 (5) Such employees of the department of transportation as are designated peace officers by resolution of the department under section 321.477.
 (6) Employees of an aviation authority designated as peace officers by the authority under section 330A.8, subsection 16.
 2. A person licensed or who purports to be licensed under this chapter shall, upon the request of any peace officer investigating a complaint of illegal services, present a copy of the person’s valid license issued pursuant to this chapter and a government-issued identification to the peace officer.