Preventive detention review is limited to relevant material and rational support for executive satisfaction, not judicial substitution.

Preventive detention under public order legislation turns on the executive's own satisfaction, and the absence of an advisory body does not by itself require an oral hearing before a detention order is made. The Court's review is confined to whether the disclosed grounds are relevant to the statutory object and capable of rationally supporting that satisfaction; it cannot reassess the sufficiency of the material or substitute its own view. On the stated facts, the detainee's association with a party said to promote violence, strikes, agrarian unrest and subversive activity, and with persons connected to such conduct, was treated as relevant material supporting the detention order.

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Issues: Whether the detention order was invalid for want of a hearing and for want of sufficient relevant material to support the Government's satisfaction under the preventive detention law.

Analysis: The power to legislate for preventive detention in the interests of public order was treated as distinct from the executive authority's discretion to make an order on its own satisfaction. The absence of an advisory body did not itself create a duty to give an oral hearing before making a detention order, because the statute imposed no such requirement. The Court further held that its role was limited to examining whether the grounds disclosed were relevant to the statutory object and capable of rationally supporting satisfaction, not to substituting its own assessment for that of the executive. On the facts, the disclosed grounds concerning the appellant's association with a party alleged to promote violence, industrial strikes, agrarian unrest and subversive activity, together with his association with persons connected with such activities, were held to be relevant material.

Conclusion: The detention was upheld and the challenge to the order failed.

Final Conclusion: Executive satisfaction in preventive detention matters is not open to substitution by the Court when it is founded on relevant material bearing on public safety and order.

Ratio Decidendi: In preventive detention cases, the Court may test only whether the grounds are relevant to the statutory purpose and capable of rational support, but it cannot review the sufficiency of those grounds or replace the executive's satisfaction with its own.

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