This section applies where a matter is under the rules of a trade union required or allowed to be submitted for determination or conciliation in accordance with the rules of the union, but a provision of the rules purporting to provide for that to be a person's only remedy has no effect (or would have no effect if there were one).
Notwithstanding anything in the rules of the union or in the practice of any court, if a member or former member of the union begins proceedings in a court with respect to a matter to which this section applies, then if—
the rules requiring or allowing the matter to be so submitted, and the fact that any relevant steps remain to be taken under the rules, shall be regarded for all purposes as irrelevant to any question whether the court proceedings should be dismissed, stayed or sisted, or adjourned.
An application shall be deemed to be valid for the purposes of subsection (2)(a) unless the union informed the applicant, before the end of the period of 28 days beginning with the date on which the union received the application, of the respects in which the application contravened the requirements of the rules.
If the court is satisfied that any delay in the taking of relevant steps under the rules is attributable to unreasonable conduct of the person who commenced the proceedings, it may treat the period specified in subsection (2)(b) as extended by such further period as it considers appropriate.
In this section—
This section does not affect any enactment or rule of law by virtue of which a court would apart from this section disregard any such rules of a trade union or any such fact as is mentioned in subsection (2).