Service of a paper, other than process, upon the sheriff may be made by delivering it to him or to one of his deputies, or to a person in charge of the office during office hours. When the sheriff is a party to an action or proceeding, the process and orders therein, which it would otherwise be the duty of the sheriff to execute, shall be executed by a constable, or a person appointed by the court.
A.R.S. § 11-454
Service on sheriff
Official source: Arizona State Legislature. Reproduced from public-domain Arizona statutes; confirm against the official source for the current text. Not legal advice.