In several past criminal procedure cases, he had aligned with Justice Scalia in staking out a firm view of defendants' rights, reflecting what the two conservatives said was the position of the Constitution's framers.

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Further, an attempt to examine issues that relate to the criminal proceedings in Greece will seriously violate Ms Thanou's right to a fair trial and it would breach the European Convention on Human Rights and it would constitute an interference with an independent criminal procedure of a country's criminal justice system.

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This brief description doesn't do justice to the complexities of the procedure.

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And the typical 5-4 split between conservative and liberal justices may not rule the day: Justice Ruth Bader Ginsburg, a former civil procedure professor, is a class-action skeptic who has previously voted to rein in cases on behalf of asbestos claimants and insurance customers.

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In the case, Mr Justice Ouseley said that the parties could not voluntarily agree to a closed procedure - and that Parliament would have to legislate.

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James Kelly Labour's justice spokesman said: "The arguments in favour of taking this legislation as emergency procedure have been flimsy, " he said.

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The justice ministry said that the US authorities had failed to provide confidential testimony about Polanski's original sentencing procedure.

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