Burma's highest court on Friday rejected Aung San Suu Kyi's appeal against her continued detention under house arrest, according to her lawyer.
“The Supreme Court rejected our arguments against the sentences of Daw Suu and two of her inmates,” said the lawyer, Nyan Win.
He said that he will make a final appeal to Burma's chief justice within the next one or two days.
Suu Kyi had her latest round of house arrest extended in August for violating the terms of her house arrest by briefly sheltering an uninvited American intruder in her home in May 2009.
In a trial widely condemned as a farce, the 64-year-old Nobel Peace Prize laureate was initially sentenced to three years in prison with hard labor, but the sentence was commuted to 18 months house arrest by junta chief Snr-Gen Than Shwe.
Burma's highest court heard final arguments by the lawyers of Burmese pro-democracy leader Aung San Suu Kyi and government lawyers on Jan. 18.
Suu Kyi's lawyer argued that her house arrest extension was unlawful because it was based on provisions from the 1974 Constitution which was no longer in effect. 
Government lawyers countered that the 1974 Constitution could still be cited since it was not officially abolished.
“The court today accepted the arguments made by the government lawyers,” Nyan Win said.
Diplomats from France, Britain, Australia and the United States gathered in the courtroom to hear the decision, he said.
National League of Democracy party spokesman Khin Maung Swe said, “The decision shows that the election will be nowhere near all-inclusive, free and fair. With the party leader detained, the party remains in a difficult position on the election.”
Meanwhile, European diplomats and NLD leaders on Friday met for a discussion about the upcoming election and the party's political stand, the party officials said.
At the party's headquarters in Rangoon, four Central Executive Committee (CEC) members of the NLD, including dissident journalist Win Tin, met with diplomats from the embassies of Britain, France, Norway, Italy and the United States, according to party spokesman Khin Maung Swe.
The meeting took place hours after the Burma's highest court rejected Suu Kyi's appeal against her continued detention under house arrest. The discussion was centered on the question of whether the NLD would join the election or not, Khin Maung Swe said.
“The diplomats asked us our position toward the election and what they can do for us,” he said, adding that during the discussion, the NLD party officials echoed Suu Kyi's recent comment that the time was not right to decide about participation in the election.
The party officials also emphasized the importance of meetings between Suu Kyi and the regime chief, Snr-Gen Than Shwe, and also between Suu Kyi and the party's CEC members.

The party has not yet decided whether to participate in the election and party officials claim they are still holding on to the party's Shwegondaing