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 must be executed by the coroner of the county or a registered process server.
Mont. Code Ann. § 25-3-205
Execution of process when sheriff a party
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.