Behind bars on New York’s Rikers Island since Monday, the beleaguered former IMF chief is returning to a Manhattan court on Thursday afternoon to again ask for bail on charges he sexually assaulted a hotel maid - a move seemed certain to face vigorous opposition by prosecutor

Dominique Strauss—Kahn will try to get out of one of America’s most notorious jails on Thursday, hours after he resigned as chief of the International Monetary Fund to focus his energy on fighting sexual assault charges.

Behind bars on New York’s Rikers Island since Monday, the beleaguered former IMF chief is returning to a Manhattan court on Thursday afternoon to again ask for bail on charges he sexually assaulted a hotel maid - a move seemed certain to face vigorous opposition by prosecutors.

Late Wednesday, Strauss—Kahn resigned as managing director of the International Monetary Fund, according to a letter released by its executive board.

In the letter, Strauss—Kahn denied the allegations but said he felt compelled to resign with “great sadness” because he was thinking of his family and also wanted to protect the IMF.

In court papers filed by his defence team Wednesday, Strauss—Kahn said he had surrendered his passport and wouldn’t flee the country. His attorneys proposed posting $1 million cash bail and confining him to the home of his daughter, Camille, a Columbia University graduate student in New York, 24 hours a day with electronic monitoring.

Strauss—Kahn, 62, “is a loving husband and father, and a highly regarded diplomat, politician, lawyer, politician, economist and professor, with no criminal record,” his attorneys wrote.

They had proposed similar conditions at an earlier bail hearing but added house arrest on Wednesday. A judge denied him bail on Monday.

Investigators have revisited to the penthouse hotel room to cut out a piece of carpet in a painstaking search for DNA evidence, law enforcement officials said on Wednesday. New York detectives and prosecutors believe the carpet in the hotel room may contain Strauss—Kahn’s semen, the officials told The Associated Press.

One of the officials said that the DNA testing was being “fast—tracked” but that the results could still be a few days away.

The two officials spoke to the AP on condition of anonymity because neither was authorized to speak about the case publicly and because it has gone to a grand jury.

The maid, a 32—year—old immigrant from the West African nation of Guinea, told police that Strauss—Kahn came out of the bathroom naked, chased her down, forced her to perform oral sex on him and tried to remove her underwear before she broke free and fled the room.

The AP does not identify alleged victims of sex crimes unless they agree to it.

Strauss—Kahn went from his luxurious hotel suite to an isolated cell block at Rikers normally reserved for patients with contagious diseases. Kept in protective custody and on a suicide watch, authorities said he ate his meals alone in a single cell and was escorted everywhere by prison guards.

Defense lawyers can raise the issue of bail as many times as they like, and it’s common to make new proposals and try again after a client gets high or no bail, said Stuart P. Slotnick, a New York defense lawyer not involved in the case.

Living elsewhere is often seen as as a risk, but it’s not insurmountable, Mr. Slotnick said.

In a case like Strauss—Kahn’s, bail “is not going to be a slam dunk, but if they can convince the judge that he’s not a risk of flight, that he’s going to come back, then he’ll get bail,” Mr. Slotnick said.

Another hearing had been scheduled for Friday, the deadline for prosecutors to bring an indictment, agree to a preliminary hearing or release him.

In addition to examining the Sofitel Hotel suite for further potential DNA evidence, investigators were looking at the maid’s keycard to determine whether she used it to enter the room, and how long she was there, officials said.

Police Commissioner Raymond Kelly declined to comment on Wednesday on the details of the evidence—gathering but said results of any DNA and other testing have not yet come back. He said the detectives investigating the case found the maid’s story believable.

“Obviously, the credibility of the complainant is a factor in cases of this nature,” Mr. Kelly said. “One of the things they’re trained to look for, and what was reported to me early on, was that the complainant was credible.”

One of Strauss—Kahn’s attorneys, Benjamin Brafman, said at his client’s arraignment this week that the forensic evidence “will not be consistent with a forcible encounter.” That led to speculation the defense would argue it was consensual sex.

The woman’s lawyer, Jeffrey Shapiro, has dismissed suggestions from some of Strauss—Kahn’s defenders that she made up the charges or tried to cover up a consensual encounter.

Strauss—Kahn is one of France’s highest—profile politicians and was seen as a potential candidate for president in next year’s elections. His arrest shocked France.

The scandal comes at a critical moment for the International Monetary Fund, which is trying to shore up teetering economies in Europe. The IMF is an immensely powerful agency that loans money to countries to stabilize the world economy. In exchange it often imposes strict austerity measures.

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