Oregon Revised Statutes Counties and County Officers § 206.010

(1) Arrest and commit to prison all persons who break the peace, or attempt to break it, and all persons guilty of public offenses.

(2) Defend the county against those who, by riot or otherwise, endanger the public peace or safety.

(3) Execute the process and orders of the courts of justice or of judicial officers, when delivered to the sheriff for that purpose, according to law.

(4) Execute all warrants delivered to the sheriff for that purpose by other public officers, according to law.

(5) Attend, upon call, the Supreme Court, Court of Appeals, Oregon Tax Court, circuit court, justice court or county court held within the county, and to obey its lawful orders or directions.