‘The issue of costs to be dealt with by further application under Rule 10.’
‘An application for an order under paragraph (1) may be made at any time during the proceedings but may not be made later than 14 days after the date on which the Tribunal sends the decision notice recording the decision which finally disposes of all issues in the proceedings.’
‘ 10 Orders for costs (1) Subject to paragraph (2), the Tribunal may make an order in respect of costs only (a) under section 29(4) of the 2007 Act (wasted costs); or (b) if the Tribunal considers that a party or its representative has acted unreasonably in bringing, defending or conducting the proceedings.’
‘“Unreasonable" also means what it has been understood to mean in this context for at least half a century. The expression aptly describes conduct which is vexatious, designed to harass the other side rather than advance the resolution of the case, and it makes no difference that the conduct is the product of excessive zeal and not improper motive. But conduct cannot be described as unreasonable simply because it leads in the event to an unsuccessful result or because other more cautious legal representatives would have acted differently. The acid test is whether the conduct permits of a reasonable explanation. If so, the course adopted may be regarded as optimistic and as reflecting on a practitioner's judgment, but it is not unreasonable.’
‘30. … The crucial question is whether, in all the circumstances of the case, the claimant withdrawing his claim has conducted the proceedings reasonably. It is not whether the withdrawal of the claim is in itself reasonable …’
‘40. … The principle of relevance means that the tribunal must have regard to the nature, gravity and effect of the unreasonable conduct as factors relevant to the exercise of the discretion [whether to order costs], but that is not the same as requiring BNP Paribas to prove that specific unreasonable conduct by the applicant caused particular costs to be incurred.’
‘41. … the indemnity principle must apply to the award of costs. It is not, however, punitive and impermissible for a tribunal to order costs without confining them to the costs attributable to the unreasonable conduct.’
‘41. … As I have explained, the unreasonable conduct is a precondition to order costs and it is also a relevant factor to be taken into account in deciding whether to make an order for costs and the form of the order.’