NEW YORK — The lawyer for the woman who accused former IMF head Dominique Strauss-Kahn of sexual assault said Saturday that he believes prosecutors plan to dismiss some or all of the charges.

Attorney Kenneth Thompson told The New York Times that he got a letter from an assistant district attorney offering to meet with his client Monday, the day before Strauss-Kahn’s next scheduled court appearance.

The letter was written in terse tones and said the purpose was to discuss what would happen in court the next day. It said prosecutors would only meet the woman at 3 p.m.

“Should she not be available or should she fail to attend, I will assume that she does not wish to take advantage of this opportunity,” wrote the prosecutor, Assistant District Attorney Artie McConnell.

“If they were not going to dismiss the charges,” he told the newspaper, “there would be no need to meet with her. They would just go to court the next day to say, `We’re going to proceed with the case.’ ”

Thompson sent an email to The Associated Press saying he was on a plane and couldn’t immediately discuss the issue.

A spokeswoman for the Manhattan District Attorney’s office declined to comment.

Strauss-Kahn was arrested during a May visit to New York City after a housekeeper at a Manhattan hotel told police he attacked her when she arrived to clean his suite. The woman, Nafissatou Diallo, told police that he forced her to perform oral sex and then left the hotel.

The arrest prompted Strauss-Kahn to resign from the International Monetary Fund, and disrupted his political career in France, where he was seen as a probable candidate for president.

But in July, prosecutors said publicly that Diallo had lied to them about her personal history, and about some critical details of the case. She also admitted lying to U.S. immigration officials about her life in Guinea, her native country, when she applied for political asylum in 2003. A law enforcement official also said prosecutors discovered that, a day after the alleged attack, Diallo had called a friend to talk about the incident, and that during that call she had mentioned Strauss-Kahn’s wealth.

The district attorney’s office then agreed to relax the conditions of Strauss-Kahn’s bail, allowing him to be freed from house arrest.

The Associated Press generally doesn’t name people who report being sexually assaulted unless they agree to be identified, as Diallo has done.

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The sex assault case against former IMF head Dominique Strauss-Kahn appears to be in trouble amid reported concerns over the alleged victim’s credibility.

Law enforcement officials have told US media the accuser has repeatedly lied since the alleged attack on 14 May.

The Guinean-born maid also appeared to have lied about her asylum application, officials reportedly said.

Mr Strauss-Kahn is due in court on Friday. His lawyers are expected to ask for his bail conditions to be relaxed.

The 62-year-old French politician has been under house arrest in a New York apartment since posting a $6m (£3.7m) cash bail and bond in May. He has armed guards, electronic surveillance and wears an electronic ankle monitor.

‘Thrown to the wolves’

He is charged with seven counts including four felony charges – two of criminal sexual acts, one of attempted rape and one of sexual abuse – plus three misdemeanour offences, including unlawful imprisonment.

Mr Strauss-Kahn, who resigned as head of the International Monetary Fund to defend himself, vigorously denies the charges.

Former Socialist Prime Minister Lionel Jospin described the latest developments as “a thunderbolt”. “He was thrown to the wolves,” Mr Jospin said, in an apparent criticism of the US justice system.

In earlier court hearings, prosecutors had spoken of the strength of their case. One attorney said the proof against him was “substantial”.

But US media now report that prosecutors plan to outline their concerns about the 32-year-old maid’s credibility to the judge in Friday’s unscheduled court hearing.

Although forensic tests found unambiguous evidence of a sexual encounter between Mr Strauss-Kahn and the woman, prosecutors now do not believe much of what the accuser has told them about the circumstances or about herself, the The New York Times reports.

Law enforcement officials believe there are inconsistencies over claims the immigrant accuser made in her application for asylum, particularly over an allegation that she had been raped in her native West African state of Guinea, US media reports.

The maid told the authorities that Mr Strauss-Kahn accosted her after she entered his room in New York’s Sofitel hotel to clean it.

The defence team had been expected to argue that a sexual encounter occurred, but that it was consensual.

In recent weeks, they had claimed to have information that “gravely undermined” the credibility of the woman, but the New York Times says it was the prosecutors’ own investigators who uncovered the current reported inconsistencies.

Until his arrest, Mr Strauss-Kahn was seen as a leading candidate to be the next centre-left French presidential candidate and challenger to conservative President Nicolas Sarkozy.

The BBC’s Christian Fraser says that, although there are still two weeks left for socialist candidates to put their name forward for next year’s presidential election, it seems unthinkable that Mr Strauss-Kahn could still enter the race.

In the days after his arrest, his reputation was further tarnished by a litany of stories about his reputation as a womaniser.

The issues sparked some soul searching in France about attitudes in general towards sexual harassment and abuse, and the treatment of women in the workplace, our correspondent says.

On Wednesday, France’s former Finance Minister Christine Lagarde was officially named as Mr Strauss-Kahn’s replacement at the IMF.

Whatever the merits of this new evidence, or of the character of Dominique Strauss-Kahn, the French felt particularly aggrieved at the way the case was conducted in the days after his arrest.

It was not only his reputation that was tarnished, but also that of the French nation in the eyes of the international community. The “perp walk”, the parading of the accused, the headlines such as “Chez Perv” and “Frog Legs It”, were widely perceived as insulting and humiliating.

And already the French media is talking about Mr Strauss-Kahn’s rehabilitation, even though there is unambiguous DNA evidence that a sexual encounter did take place.

The list of socialist candidates for next year’s presidential election is still open and will be for two more weeks. But it is surely unthinkable that Dominique Strauss-Kahn will re-enter the race.

Aside from the allegations in New York, there has been too much written about his previous encounters and his questionable behaviour towards women.

BBC Reporter