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6601A Issuing subpoena to produce—certificate of readiness to be filed
(1) An issuing officer must not issue a subpoena to produce in a proceeding without the court's leave unless the certificate of readiness has been filed in the proceeding.
(2) This rule does not apply to—
(a) a subpoena in a criminal proceeding; or
(b) a subpoena in a proceeding under part 3.13 (Workers compensation) that is addressed to a party to the proceeding.