Preventive detention — the power to detain a person without trial to prevent them from acting against public order, national security, or other specified purposes — is one of the most serious curtailments of personal liberty available under Indian law. Precisely because it bypasses the ordinary criminal trial process, the Constitution surrounds it with strict procedural protections. When these protections are violated, the detention is illegal — regardless of the state's reasons for ordering it.

What the Court Decided

The case involved a detention order under the Prevention of Illicit Traffic in Narcotic Drugs and Psychotropic Substances Act, 1988 (PITNDPS Act). The detaining authority issued the order but failed to inform the detainee of their constitutional right to make a representation before the detaining authority itself. The detainee did independently send representations — but none specifically addressed to the detaining authority in the manner the right required.

The Supreme Court set aside the detention order as illegal and unconstitutional.

Case Reference
Alfiya.A v. State of Kerala & Ors. | | Hon'ble Justice Vikram Nath & Hon'ble Justice Sandeep Mehta | August 7, 2026 | Hon'ble Supreme Court of India

The Constitutional Right — Article 22(5)

Article 22(5) of the Constitution provides that when a person is detained under a preventive detention law, the detaining authority must: (a) communicate to the detainee the grounds of detention as soon as may be; and (b) afford the detainee the earliest opportunity to make a representation against the order.

The Court held that the obligation to inform the detainee of their right to make a representation is upon the authority — it is not discharged merely because the detainee somehow found out about it independently. The constitutional protection requires the authority to affirmatively communicate this right. Failure to do so is a constitutional infirmity that strikes at the very foundation of the detention order.

The Court also held that the fact that the detainee had sent representations to other authorities (such as the Advisory Board or the government) did not cure the failure to inform them of their right to represent specifically before the detaining authority.

The Key Principle

The obligation to communicate the right to make a representation cannot depend upon whether the detainee independently became aware of it. It is the authority's duty — not the detainee's responsibility to discover it. This constitutional guarantee cannot be constructively satisfied by the detainee's own initiative.

What Constitutes Illegal Preventive Detention

A preventive detention order can be challenged and set aside on any of the following grounds:

What Families of Detainees Must Do

File a writ of habeas corpus immediately before the High Court (and, if the detention is under a Central Government order, before the Supreme Court). This is the primary judicial remedy against illegal preventive detention and must be filed without delay.

Obtain copies of the detention order and grounds of detention — the authority is obligated to provide these to the detainee. If they have not been provided, this is itself a ground of challenge.

Check the grounds carefully: are they specific and proximate? Have they been served in a language the detainee understands? Was the detainee told of the right to represent?

File a representation to the detaining authority — and keep proof of sending. This is both a procedural requirement and a constitutional right. The Advisory Board considers this representation when reviewing the detention.