Supporting Link(s)
Mohammad Shafique v State [AIR 1956 All 108] 
Relevant Legislation (Internal Link)
Summary/Remarks
It was held that a temporary permit granted before the Permit System Rules of 7-9-1948 would not be governed by said Rules since they do not have retrospective effect. The Ordinance and Rules that existed before the Rules of 7-9-1948 did not prohibit overstaying of a permit. The overstay of a person who had such a permit therefore, would not be an offence since making it an offence would mean a post facto offence, a violation of Article 20.