Preventive detention and effective representation: withholding material particulars can vitiate detention, while prosecution failure alone does not prove mala fides.

Article 22(5) requires the detenu to be told all material particulars relied on for detention so an effective representation can be made; withholding relevant adverse material that influenced the detaining authority vitiates the detention order and breaches the constitutional safeguard. Preventive detention remains distinct from punitive prosecution, so the failure of criminal cases does not by itself establish mala fides, and the challenge based only on that ground was rejected. The attack on the continuance of the emergency and on the constitutional validity of the preventive detention scheme also failed, as the provisions were read in harmony with Article 22(5) rather than struck down.

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Issues: (i) Whether the detention order was vitiated by failure to communicate all material particulars necessary for an effective representation under Article 22(5). (ii) Whether the detention was bad because it followed failed criminal prosecutions and was alleged to be mala fide. (iii) Whether the challenge to the continuance of the emergency and the constitutional validity of the preventive detention scheme could succeed.

Issue (i): Whether the detention order was vitiated by failure to communicate all material particulars necessary for an effective representation under Article 22(5).

Analysis: Article 22(5) requires communication of the grounds on which detention is made and affording the earliest opportunity to make a representation. The constitutional protection is not satisfied by a bare recital of the formal grounds if material relied upon by the detaining authority, and which influences the subjective satisfaction, is withheld from the detenu. The statutory scheme under the Maintenance of Internal Security Act, 1971, including the provisions governing communication of grounds and transmission of particulars, must be read consistently with that guarantee. Relevant adverse material that remained uncommunicated and could have been answered by the detenu was treated as having impaired the constitutional right of representation.

Conclusion: The detention was illegal for denial of an effective opportunity to make representation, and the petitioner was entitled to be released.

Issue (ii): Whether the detention was bad because it followed failed criminal prosecutions and was alleged to be mala fide.

Analysis: Preventive detention is distinct from punitive prosecution, and failure of criminal cases does not by itself bar a detention order. Subjective satisfaction may rest on preventive assessment rather than proof beyond reasonable doubt. At the same time, the power must not be exercised for extraneous purposes, and the material must be relevant and rational. On the record, the Court did not accept that the mere fact of discharge in criminal cases established invalidity of the detention on mala fide grounds.

Conclusion: The mala fide challenge based solely on the failure of criminal prosecutions was not accepted.

Issue (iii): Whether the challenge to the continuance of the emergency and the constitutional validity of the preventive detention scheme could succeed.

Analysis: The attack on the continuance of the emergency was treated as non-justiciable and outside the Court's proper domain. The preventive detention provisions were construed in harmony with Article 22(5), and the Court declined to strike them down as unconstitutional on the grounds urged. The focus remained on enforcing the constitutional safeguards within the statute rather than invalidating the legislative scheme itself.

Conclusion: The challenge to the emergency and to the constitutional validity of the preventive detention scheme failed.

Final Conclusion: The detention was set aside because the constitutional safeguard of an effective opportunity to make representation was not fully observed, even though the broader attack on emergency and the preventive detention framework did not succeed.

Ratio Decidendi: In preventive detention matters, Article 22(5) requires communication of all material grounds and particulars relied upon by the detaining authority so that the detenu can make an effective representation; withholding material that influences detention vitiates the order.

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