Lille: French police will question disgraced former IMF chief Dominique Strauss-Kahn on Tuesday about his alleged involvement in an illegal prostitution ring.

He has been summoned for questioning at 9:00 am (13:30IST) in connection with a police probe into the organisation of sex parties in restaurants and swingers' clubs in Paris, Washington, Madrid, Vienna and Ghent, Belgium.

Strauss-Kahn could face charges if magistrates deem he was aware the women who took part were prostitutes and the funds to pay them were fraudulently obtained, as is being alleged against other suspects.
While theoretically he could be held for up to 96 hours the interrogation is not expected to last more than 48 and he can be accompanied by a lawyer.
A police source said it was not ruled out that Strauss-Kahn would be charged then taken before a judge to decide whether he should be remanded in custody.
 Strauss-Kahn, 62, resigned as director of the International Monetary Fund in May after he was accused of raping a chambermaid in a New York hotel.

He returned to France in August after the US case collapsed, only to face new allegations.

First a 32-year-old writer accused him of attempting to rape her in 2003 but, while prosecutors said there was prima facie evidence of sexual assault, the case was too old to pursue.

Then he was implicated in an entirely separate investigation into the alleged prostitution ring said to have operated out of luxury hotels in the northern French city of Lille.

Magistrates have already charged several leading local figures with organising the ring and there are suspicions that a construction company executive used his firm's money to entertain guests at sex parties.

Strauss-Kahn is also expected to be asked if he gave anything in return for the parties organised and funded by businessmen Fabrice Paszkowski and David Roquet, who have already been charged.

A book published in December quoted him as admitting to having an uninhibited sex life, including attending swingers' parties, but he denied knowing that any of the participants were prostitutes.