Oregon Revised Statutes Procedure in Criminal Matters Generally § 133.140

(1) Be in writing;

(2) Specify the name of the person to be arrested, or if the name is unknown, shall designate the person by any name or description by which the person can be identified with reasonable certainty;

(3) State the nature of the crime;

(4) State the date when issued and the county or city where issued;

(5) Be in the name of the State of Oregon or the city where issued, be signed by and bear the title of the office of the magistrate having authority to issue a warrant for the crime charged;

(6) Command any peace officer, or any parole and probation officer for a person who is being supervised by the Department of Corrections or a county community corrections agency, to arrest the person for whom the warrant was issued and to bring the person before the magistrate issuing the warrant, or if the magistrate is absent or unable to act, before the nearest or most accessible magistrate in the same county;

(7) Specify that the arresting officer may enter premises, in which the officer has probable cause to believe the person to be arrested to be present, without giving notice of the officer's authority and purpose, if the issuing judge has approved a request for such special authorization; and

(8) Specify the amount of security for release.