Provides a process for the department to apply for court approval of an agency investigative subpoena that is authorized under law in cases when the agency seeks approval, or when court approval is required by Article I, section 7 of the state Constitution. The department may apply for and obtain a superior court order approving and authorizing a subpoena in advance of its issuance. The application must adequately specify the documents, records, evidence, or testimony sought and must include a declaration made under oath that an investigation is being conducted for a lawful purpose.