The National Security Act, 1980
Parliament of India
Long title An Act to provide for preventive detention in certain cases and for matters connected therewith.
Citation	Act No. 65 of 1980
Territorial extent	India
Enacted by	Parliament of India
Assented to	27 December 1980
Signed by	Neelam Sanjiva Reddy President of India
Commenced	27 December 1980
Keywords
Central Government, State Government, detention order, foreigner
Status: In force

The National Security Act of 1980 is an act of the Indian Parliament promulgated on 23 September 1980^[1] whose purpose is "to provide for preventive detention in certain cases and for matters connected therewith".^[2] The act extends to the whole of India. It Contains 18 sections. This act empowers the Central Government and State Governments to detain a person to prevent him/her from acting in any manner prejudicial to the security of India, the relations of India with foreign countries, the maintenance of public order, or the maintenance of supplies and services essential to the community it is necessary so to do. The act also gives power to the governments to detain a foreigner in a view to regulate his presence or expel from the country. The act was passed in 1980 during the Indira Gandhi Government.^[3]

As per a 1993 report 72.3 percent of 3783 people under the law were later released due to lack of evidence.^[4]

The National Security Act is not the first law of its kind to be enacted in India. The Defense of India Act of 1915 was amended at the time of the First World War to enable the state to detain a citizen preventively. The Rowlatt Committee, approved after the First World War, recommended that the harsh and repressive I provisions of the Defense of India Act be retained permanently on the statute books. The interesting feature of the Rowlatt Bills was that they empowered the State to detain a citizen without giving the detainee any right to move the law courts, and even the assistance of lawyers was denied to a detainee. The Jallianwalla Bagh tragedy was a direct result of the protest against these Rowlatt Bills.

The Government of India Act, 1935 gave the powers of preventive detention to the State for reasons connected with defense, external affairs or discharge of functions of the Crown in its relations with the Indian States. The provincial legislatures had the power to formulate laws for reasons connected with the Maintenance of Public Order When the Constitution of India was enacted, Article 21 guaranteed to every person the right of life and liberty which could not be denied to him without honoring the due procedure established by law. In A.K. Gopalan's case the Supreme Court distinguished "the procedure established by law" from the "due process of law" saying that any procedure duly enacted would be a "procedure established by law". However, this view now stands reversed in Maneka Gandhi's case where the Supreme Court has held that the "procedure established by law" must also be just, fair and reasonable.

Article 22 of the Constitution laid down the scheme under which a preventive detention law could be enacted. The PD Act 1950 was enacted and it continued to be on the statute book until the Maintenance of Internal Security Act (MISA) was enacted in 1971. The MISA was repealed in 1977. And the only period in the Indian republic without any preventive detention law was the three-year period, beginning with the repeal of MISA in 1977 to the promulgation of the NSA in 1980.

The maximum period of detention is 12 months. The order can also be made by the District Magistrate or a Commissioner of Police under their respective jurisdictions, but the detention should be reported to the State Government along with the grounds on which the order has been made. No such order shall remain in force for more than twelve days unless approved by the State Government. The National Security Act may also be invoked if a person assaults a policeman on duty.^[2]

The National Security Act along with other laws allowing preventive detention have come under wide criticism for their alleged misuse. The act's constitutional validity even during peacetime has been described by some sections as an anachronism.^[5]