There are different rationales in different countries about the subject of public interest litigation, such as trust theory, private attorney general theory and supervision and restriction theory.

各国确立公益诉讼起诉主体的理论基础有信托理论、“私人总检察长”理论和监督制约理论。

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He approached Mr. Corbett, then the state's attorney general, with his theory that the New York copy was in fact Pennsylvania's.

WSJ: Truce Ends Tussle Over Bill of Rights