The preventive detention case
A.K. Gopalan v. State of Madras
Overruled in part by Rustom Cavasjee Cooper (1970); Overruled in part by Maneka Gandhi (1978)
Held. The Court upheld the Preventive Detention Act, 1950 (except one section). It read “procedure established by law” in Article 21 as any procedure enacted by a legislature, not a procedure that must also be fair, and treated each fundamental right as a separate compartment to be tested on its own.
Why it matters. Gopalan is the starting point of the story of Article 21. Almost every later case on personal liberty is a reply to it.
Later Applied in Kharak Singh (1962) · Overruled in part by Rustom Cavasjee Cooper (1970) · Applied in A.D.M. Jabalpur (1976) · Overruled in part by Maneka Gandhi (1978)