Cal. Bus. & Prof. Code § 7106.5

The expiration, cancellation, forfeiture, or suspension of a license by operation of law or by order or decision of the registrar or a court of law, or the voluntary surrender of a license by a licensee shall not deprive the registrar of jurisdiction to proceed with any investigation of or action or disciplinary proceeding against the license, or to render a decision suspending or revoking the license.