The prosecution dropped the sexual assault charges against Strauss-Kahn last month after deciding the accuser, Nafissatou Diallo, was not a strong enough witness. The dismissal of the case brought an abrupt end to the three-month investigation.
The interviews with Newsweek and ABC were set up by the New York hotel maid's lawyer after prosecutors said that the case against Strauss-Kahn had been hurt by problems with her testimony and her credibility
Koubbi denied the decision to file a lawsuit was influenced by the New York case. “Even if that case against Mr Strauss-Kahn turns out to be unfounded, ours is not - it is extremely solid and backed-up,” L'Express quoted him as saying.