A lawyer for Dominique Strauss-Kahn says French prosecutors are seeking to drop all charges against the former International Monetary Fund chief in a case involving a hotel prostitution ring.

Henri Leclerc said Tuesday's announcement shows the case's weakness. A judge makes the final decision.

A onetime French presidential hopeful, Strauss-Kahn has had his sexual behavior scrutinized since a New York City hotel maid accused him of trying to rape her. Those charges were later dropped.

The case in the French city of Lille hinged on whether he knew he was partying with prostitutes and whose money was used to pay them. His lawyers have said Strauss-Kahn had attended "libertine" gatherings but didn't know that some women there were paid.