(1) If a person is charged with aggravated first degree murder as defined by RCW 10.95.020
, the prosecuting attorney shall file written notice of a special sentencing proceeding to determine whether or not the death penalty should be imposed when there is reason to believe that there are not sufficient mitigating circumstances to merit leniency.
(2) The notice of special sentencing proceeding shall be filed and served on the defendant or the defendant's attorney within thirty days after the defendant's arraignment upon the charge of aggravated first degree murder unless the court, for good cause shown, extends or reopens the period for filing and service of the notice. Except with the consent of the prosecuting attorney, during the period in which the prosecuting attorney may file the notice of special sentencing proceeding, the defendant may not tender a plea of guilty to the charge of aggravated first degree murder nor may the court accept a plea of guilty to the charge of aggravated first degree murder or any lesser included offense.
(3) If a notice of special sentencing proceeding is not filed and served as provided in this section, the prosecuting attorney may not request the death penalty.