Washington Revised Code Title 3. District Courts--Courts of Limited Jurisdiction § 3.66.010. Powers of district court

(1) The justices of the peace elected in accordance with chapters 3.30 through 3.74 RCW are authorized to hold court as judges of the district court for the trial of all actions enumerated in chapters 3.30 through 3.74 RCW or assigned to the district court by law; to hear, try, and determine the same according to the law, and for that purpose where no special provision is otherwise made by law, such court shall be vested with all the necessary powers which are possessed by courts of record in this state; and all laws of a general nature shall apply to such district court as far as the same may be applicable and not inconsistent with the provisions of chapters 3.30 through 3.74 RCW. The district court shall, upon the demand of either party, impanel a jury to try any civil or criminal case in accordance with the provisions of chapter 12.12 RCW. No jury trial may be held in a proceeding involving a traffic infraction.

(2) A district court participating in the program established by the administrative office of the courts pursuant to RCW 2.56.160 shall have jurisdiction to take recognizance, approve bail, and arraign defendants held within its jurisdiction on warrants issued by any other court of limited jurisdiction participating in the program.