Where proceedings have been concluded in which an assisted person (including, for the purpose of this regulation, a person who was an assisted person in respect of those proceedings) is liable or would have been liable for costs if he had not been an assisted person, no costs attributable to the period during which his certificate was in force shall be recoverable from him until the court has determined the amount of his liability in accordance with section 17(1) of the Act.

Where the assisted person’s certificate does not relate to, or has been amended so that it no longer relates to the whole of the proceedings, the court shall nevertheless make a determination under section 17(1) of the Act in respect of that part of the proceedings to which the certificate relates.

The amount of an assisted person’s liability for costs shall be determined by the court which tried or heard the proceedings.