Ariz. Rev. Stat. § 41-191
B. The attorney general and his assistants shall devote full time to the duties of the office and shall not directly or indirectly engage in the private practice of law or in an occupation conflicting with such duties, except:
2. Assistant attorney general may, but in no circumstances shall be required to, represent private clients in pro bono, private civil matters under the following circumstances:
(k) The attorney's supervisor may require the attorney to submit a prior written request to engage in pro bono work which includes a provision holding the agency harmless from any of the work undertaken by the attorney.
Notwithstanding any provision of law or rule to the contrary, representation by an attorney of a pro bono client shall not disqualify the office from subsequently participating in any action affecting the client.