5. An administrative authority may not issue an order to do or not do something or make an unfavourable decision concerning a permit or licence or other authorization of like nature without first having
(1) informed the citizen of its intention and the reasons therefor;
(2) informed the citizen of the substance of any complaints or objections that concern him;
(3) given the citizen the opportunity to present observations and, where necessary, to produce documents to complete his file.
An exception shall be made to such prior obligations if the order or the decision is issued or made in urgent circumstances or to prevent irreparable harm to persons, their property or the environment and the authority is authorized by law to reexamine the situation or review the decision.