(Wall Street Journal) The former International Monetary Fund chief Dominique Strauss-Kahn must stand trial on a charge of aggravated pimping as part of an investigation into an alleged prostitution ring, magistrates ruled Friday.

The decision came even though the prosecutor in the northern French city of Lille, Frédéric Fèvre, had recommended in June against bringing charges against Mr. Strauss-Kahn.

Mr. Fèvre said that he would decide next week whether to appeal the magistrates’ decision and declined to comment further. Under French law, the prosecutor can appeal the magistrates’ decision.

In a statement released by his lawyers, Mr. Strauss-Kahn said the decision was expected, “given the biased nature of the investigation against him.”

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