Preventive detention fails where quashed prior material is relied on and detention grounds are too vague for effective representation.

Preventive detention under the Gujarat Prevention of Anti-Social Activities Act, 1985 must rest on lawful subjective satisfaction based on relevant material; reliance on earlier detention orders that had been quashed, and on their grounds, is an impermissible factor that vitiates the order. The grounds must also contain sufficient particulars to enable an effective representation by the detenu; vague assertions of threatening conduct, weapons or intimidation without time, place or persons are too indefinite to sustain detention. On both counts, the detention order could not be maintained.

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Issues: (i) Whether the preventive detention order was vitiated because the detaining authority took into account earlier detention orders and the grounds on which those earlier orders had been quashed. (ii) Whether the detention order was invalid because the grounds were vague and lacked particulars, thereby preventing an effective representation.

Issue (i): Whether the preventive detention order was vitiated because the detaining authority took into account earlier detention orders and the grounds on which those earlier orders had been quashed.

Analysis: Preventive detention under the Gujarat Prevention of Anti-Social Activities Act, 1985 must rest on a lawful subjective satisfaction formed on relevant material. Where earlier detention orders or the grounds supporting them, once quashed, are treated as material for sustaining a fresh order, the satisfaction is tainted by reliance on irrelevant and impermissible considerations. Fresh facts may support a new detention order, but the earlier quashed material cannot be used to reinforce the conclusion that detention is necessary.

Conclusion: The detention order was vitiated to the extent it was founded on the earlier quashed detention orders and their grounds.

Issue (ii): Whether the detention order was invalid because the grounds were vague and lacked particulars, thereby preventing an effective representation.

Analysis: Grounds of preventive detention must contain sufficient particulars so that the detenu can meaningfully challenge the order. Bare assertions of threatening conduct, use of weapons, or intimidation, without specifying the time, place, or persons involved, are too indefinite to meet the statutory standard. Such vagueness undermines the right to make an effective representation and cannot sustain detention under the requirement of public order.

Conclusion: The detention order was invalid because the vague and unparticularised grounds prevented an effective representation.

Final Conclusion: The detention order could not be sustained, as it was tainted by impermissible reliance on earlier quashed detention material and by vague grounds lacking necessary particulars.

Ratio Decidendi: A preventive detention order is invalid if the detaining authority relies on quashed prior detention material in forming subjective satisfaction, and the grounds must be sufficiently specific to enable an effective representation by the detenu.

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