Dominique Strauss-Kahn has walked free from police custody after nearly 48 hours of questioning. He spent a night in jail as prosecutors used their full powers to probe the former IMF head about his role in the Carlton Hotel affair. It was at DSK's insistence that the Lille police hear his version of the events that went on for years in the northern French city's luxury establishment. It is alleged DSK and others romped with prostitutes he knew friends of his currently on trial for running a prostitution ring had procured. More about: Dominique Strauss-Kahn, France, Inquiry, Prostitution