Article 36 of the Administrative Punishment Law of the People's Republic of China shall not be given administrative punishment if the illegal act has not been discovered within two years; Involving the life, health and safety of citizens, financial security and harmful consequences, the above period is extended to five years. Except as otherwise provided by law. Article 51 of the Administrative Punishment Law of the People's Republic of China * * * If the illegal facts are conclusive and there is a legal basis, and an administrative penalty of less than 200 yuan is imposed on a citizen or a fine of less than 3,000 yuan or a warning is imposed on a legal person or other organization, a decision on administrative penalty may be made on the spot. Where there are other provisions in the law, those provisions shall prevail. Article 60 of the Administrative Punishment Law of the People's Republic of China * * * The administrative organ shall make a decision on administrative punishment within 90 days from the date of filing the case of administrative punishment. Where laws, regulations and rules provide otherwise, such provisions shall prevail.