Recall of MPs Bill

Perhaps I can be helpful to the Minister. The hon. Member for North Down (Lady Hermon) raises an important point, and as I understand it—the Minister may wish to get inspiration on this—the Speaker is not challengeable under judicial review and parliamentary privilege—[Interruption.] The Parliamentary Secretary, Cabinet Office (Mr Gyimah) is nodding away. Is it correct to say that the Member cannot challenge the Speaker’s decision, and that therefore the only opportunity for such a challenge is before the petition officer has informed the Speaker that the threshold has been met?