Washington Revised Code Title 10. Criminal Procedure § 10.112.010. Special inquiry judge process--Subpoena for records

(1) In a criminal investigation of an offense involving the sexual exploitation of children under chapter 9.68A RCW, the prosecuting attorney shall use the special inquiry judge process established under chapter 10.27 RCW when the prosecuting attorney determines it is necessary to the investigation to subpoena a provider of electronic communication services or remote computing services to obtain records relevant to the investigation, including, but not limited to, records or information that provide the following subscriber or customer information: (a) Name and address; (b) local and long distance telephone connection records, or records of session times and durations; (c) length of service and types of service utilized; (d) telephone or instrument number or other subscriber number or identity, including any temporarily assigned network address; and (e) means and source of payment for such service, including any credit card or bank account number.

(2) A provider who receives a subpoena for records as provided under subsection (1) of this section may not disclose the existence of the subpoena to the subscribers or customers whose records or information are requested or released under the subpoena.

(3) For the purposes of this section: