Summary

Portrait of Noah Haynes Swayne Noah Haynes Swayne The Siren (80 U.S. 389) — Opinion of the Court

In our jurisprudence there are, strictly speaking, no droits of admiralty. The United States have succeeded to the rights of the crown. No one can have any right or interest in any prize except by their grant or permission. All captures made without their express authority enure ipso facto to their benefit. Whenever a claim is set up its sanction by an act of Congress must be shown. If no such act can be produced the alleged right does not exist. The United States take captured property, not as droits, but strictly and solely jure reipublicae.
Source: Wikisource

Portrait of Noah Haynes Swayne Noah Haynes Swayne The Siren (80 U.S. 389) — Opinion of the Court

It was held that it must be presumed from these considerations that the government did not intend to divest itself of this important attribute, except in so far as such a purpose was clearly and unequivocally expressed. The right is not the private property of the sovereign, but a trust confided to him for the public good. In private grants the construction is most strongly against the grantor.
Source: Wikisource

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