20.— (1) A judge of the High Court may vary or discharge an account information order or account monitoring order on application by—

(a) a member of the Garda Síochána not below the rank of inspector, or

(b) any financial institution affected by the order.

(2) Where the application relates to an order under section 17, the judge shall arrange for the competent authority in the designated state concerned to be notified—

(a) of the application and the grounds for making it, so as to enable the authority to submit any arguments that it deems necessary at the hearing of the application, and

(b) of the outcome of the application.

(3) The application shall be heard otherwise than in public.