“(1) The costs of and incidental to all proceedings in the First-Tier Tribunal… shall be in the discretion of the Tribunal in which the proceedings take place” (2) The relevant Tribunal shall have full power to determine by whom and to what extent the costs are to be paid.”
“…the Tribunal may make an order in respect of costs… only — … (b) if the Tribunal considers that a party has acted unreasonably in bringing, defending or conducting the proceedings;”
“The Tribunal has adopted the ordinary meaning of the word “unreasonable” for the purpose of interpreting rule 10(1)(c) of the Rules, being “not in accordance with reason, irrational” (as defined by the Oxford English Dictionary).”