The “public disclosure bar” of the False Claims Act (“FCA”) precludes jurisdiction over certain qui tam actions that are based on the public disclosure of fraud allegations or fraudulent transactions. See 31 U.S.C. § 3730(e)(4)(A). A court has jurisdiction over such a suit only if it is brought by the Attorney General or an “original source” relator. Jurisdiction exists over the present suit because the relator, Stone, is an original source of the information on which the allegations in his qui tam complaint were based.

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