- The former IMF chief was questioned by French police last month
- Dominique Strauss-Khan has been linked to a number of sex scandals in the past year
- Strauss-Khan's attorney acknowledged that his client attended sex parties
- The questioning is part of an inquiry into an alleged French prostitution ring
(CNN) -- Former International Monetary Fund chief Dominique Strauss-Kahn was being questioned by a judge on Monday about an alleged prostitution ring that may have operated out of two French hotels.
The meeting initially had been scheduled for Wednesday.
A spokesperson for the judge has confirmed to CNN that it was the judge's decision to change the meeting date, but did not say why the decision was made.
Last month, Strauss-Kahn was held for more than 24 hours by police in Lille and questioned about his alleged involvement in the prostitution ring.
His attorneys released a statement in November calling the allegations against Strauss-Kahn "unhealthy, sensationalist and not without a political agenda."
The prostitution probe, nicknamed the "Carlton Affair" by the French press, kicked off in October.
It centers around the city of Lille, where investigators began looking into claims that luxury hotels, including the Carlton, served as a base for a high-profile prostitution network.
In December, Strauss-Kahn's attorney, Henri Leclerc, acknowledged in an interview with radio station Europe1 that his client attended sex parties, but said Strauss-Kahn was unaware the women in attendance were prostitutes.
While prostitution is not illegal in France, profiting from the prostitution of another person is against the law, according to the French Penal Code. Authorities are also investigating whether corporate funds were used to pay for the prostitutes. In the December Europe1 interview, Leclerc said there is no evidence that such funds were misappropriated.
A hotel manager and four other men were arrested late last year in connection with the investigation.
Strauss-Kahn has not been arrested or charged in connection with the Carlton Affair, but the incident continues a string of sexual allegations against him.
The former IMF chief has been linked with a number of sex scandals in the past year -- one of which torpedoed his expected plan to run for the French presidency this year -- but he has not been convicted of any crime.
He stepped down from the top job at the IMF after a New York hotel maid accused him of sexual assault and attempted rape in May.
The case ultimately fell apart after the alleged victim posed significant credibility issues for prosecutors, despite forensic evidence that showed a sexual encounter had occurred.
Strauss-Kahn also faced allegations of attempted rape from a young French writer. Tristane Banon filed a complaint, alleging a 2003 attack, though it could not be pursued because of a statute of limitations.
Strauss-Kahn denied the allegations and has since filed a countersuit in France, alleging slander.
