Application for leave for judicial review – Whether there is an arguable case for leave – Order made by the respondent revoking an expired firearm licence – Duty of decision maker to give notification of its decision – Notification of revocation sent by registered post – The date from which three-month time limit for filing the application should run – Whether the date of the revocation order or the date of its receipt should be regarded as the date of notification – Whether an alternative remedy was available to the applicant at the date of notification of the decision – Part 56 of the Civil Procedure Rules, 2002, as amended.