"(1) For the purposes of these rules "costs" means costs and expenses recoverable before the Supreme Court of England and Wales, the Court of Session or the Supreme Court of Northern Ireland. (2) The Tribunal may at its discretion, subject to paragraph (3), at any stage of the proceedings make any order it thinks fit in relation to the payment of costs by one party to another in respect of the whole or part of the proceedings and in determining how much the party is required to pay, the Tribunal may take account of the conduct of all parties in relation to the proceedings. …"
"…the principle for which OFCOM contends [is] that some exceptional factor such as unreasonable conduct is a basis for a costs award, not merely the lack of success in upholding a regulatory decision arrived at in good faith"
"There is no specific rule that costs should follow the event, but 'in determining how much the party is required to pay, the Tribunal may take account of the conduct of all parties in relation to the proceedings' (Rule 55(2))."
"the correct approach in this case is not to proceed by way of analogy with other cases, but to apply the clearly established principle that costs have to be determined on a case by basis, relying on authorities for principles where appropriate."
"Where a complainant has successfully challenged before justices an administrative decision made by a police or regulatory authority acting honestly, reasonably, properly and on grounds that reasonably appeared to be sound, in exercise of its public duty, the court should consider, in addition to any other relevant fact or circumstances, both (i) the financial prejudice to the particular complainant in the particular circumstances if an order for costs is not made in his favour; and (ii) the need to encourage public authorities to make and stand by honest, reasonable and apparently sound administrative decisions made in the public interest without fear of exposure to undue financial prejudice if the decision is successfully challenged."
"Although as a matter of strict law the power of the court in such circumstances to award costs is not confined to cases where the Local Authority acted unreasonably and in bad faith, the fact that the Local Authority has acted reasonably and in good faith in the discharge of its public function is plainly a most important factor."
"The costs of maintaining specialised regulatory and compliance departments, and taking specialised advice, will not ordinarily be recoverable prior to proceedings. We accept that the situation changes once proceedings before the Tribunal are on foot, by virtue of Rule 55 of the Tribunal's Rules. However, the question whether costs orders should be made in any particular case, or whether the costs should lie where they fall, arises against a background in which [the Appellants] and the interveners are, in their own interests, routinely incurring regulatory costs which are not recoverable."
"In the specific case of a sector such as telecommunications, where there may be interveners who are likely to be regularly appearing before the Tribunal, we think the general practice is likely to be to allow the costs of the intervention to lie where they fall."