If it appears to the First-tier Tribunal or the Upper Tribunal that a matter before it requires special expertise not otherwise available to it, it may direct that in dealing with that matter it shall have the assistance of a person or persons appearing to it to have relevant knowledge or experience.
The remuneration of a person who gives assistance to either tribunal as mentioned in subsection (1) shall be determined and paid by the Lord Chancellor.
The Lord Chancellor may—
establish panels of persons from which either tribunal may (but need not) select persons to give it assistance as mentioned in subsection (1);
under paragraph (a) establish different panels for different purposes;
after carrying out such consultation as he considers appropriate, appoint persons to a panel established under paragraph (a);
remove a person from such a panel.