Dominique Strauss-Kahn, the one-time French presidential hopeful who was accused of attempted rape in New York last May, said to police Tuesday that he did not suspect the women at orgies he attended were prostitutes.
"He could easily not have known, because as you can imagine, at these kinds of parties you're not always dressed, and I challenge you to distinguish a naked prostitute from any other naked woman," Henri Leclerc told French radio Europe 1 in December, the Associated Press reported.
While sleeping with prostitutes is legal in France, the BBC reports, provided they are over 18, French media reports say Mr Strauss-Kahn could be charged with being complicit in procuring prostitutes, which is illegal.
Strauss-Kahn has denied complicity in prostitution.
Strauss-Kahn was held overnight on Tuesday for a second day of questioning by police officials in the northern French city of Lille probing a suspected prostitution ring in France and neighboring Belgium that has implicated police and other officials.
According to the New York Times, French law allows a person to be detained for questioning without charge for 24 hours, with a possible extension to 48 hours.
Last May, Strauss-Kahn made international headlines when he resigned as the managing director of the International Monetary Fund after being charged with raping a New York hotel maid, alleging that he forced her to perform oral sex.
But then charges were dropped after prosecutors questioned his accuser’s credibility as a witness saying the maid's testimony was unreliable.
Strauss-Kahn eventually admitted that his encounter with her had been “an error” and “a moral failure but definitely not violent.
He still faces a civil suit in New York, by the former maid, Nafissatou Diallo.
Strauss-Kahn, 62, has been married to journalist Anne Sinclair for two decades.