If a crime took place several years ago, notes Ms Powell, a Greek court may regard it as time-barred and decline to extradite, even though other EU countries would count it as still prosecutable.

如果一桩罪行发生在多年前，鲍威尔女士指出，希腊法院可能认为已失时效而拒绝引渡，但欧盟其他国家却认为仍具有追诉时效。

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But we intend to stand strong and go forward and prosecute those cases that we believe are prosecutable.

NPR: Criticism Rises for New Orleans DA

A.'s Office about any case that is close to being not being prosecutable.

NPR: Criticism Rises for New Orleans DA

Mr. Cuomo's office found "no evidence to warrant filing any prosecutable charge against any of Hevesi's children, " according to the plea agreement.

WSJ: New York's Alan Hevesi Pleads Guilty