Ariz. Rev. Stat. § 12-2214
A. A subpoena for the attendance of a witness or for production of documentary evidence issued in a civil or criminal proceeding and directed to a person engaged in gathering, reporting, writing, editing, publishing or broadcasting news to the public, and which relates to matters within these news activities, shall have attached to it an affidavit of a person with a direct interest in the matters sought which states all of the following: