UNITED NATIONS - US military tribunals slated for terror suspects detained at Guantanamo Bay, Cuba, are not likely to meet international fairness standards, a U.N. expert has warned. Martin Scheinin, an independent U.N. expert monitoring the promotion and protection of human rights in the anti-terrorism arena, told a U.N. General Assembly committee on Wednesday that his visit to the detention center last December only added to his misgivings about the U.S. system of military commissions. "I find it highly unlikely that they would be able to provide a trial that meets the standards of international human rights law concerning the right to a fair trial," Scheinin said. He cited a U.S. Supreme Court ruling this year that laws establishing the military tribunals were unconstitutional because they denied suspects the legal opportunity to challenge their detention. Scheinin also told the assembly's Third Committee " debating social, humanitarian and cultural matters " that while Spain deserves credit for its efforts to recognize human rights within its fight against terrorism, he was concerned about the continued use of "incommunicado detention" of terrorism suspects. The institution of incommunicado detention should be completely eradicated, in part because it would strengthen the credibility of counter-terrorism measures by law enforcement bodies, Scheinin said.  It would also enhance assurances that those falsely accused of ill-treatment of terrorism suspects could be cleared, the Special Rapporteur noted. Speaking to journalists after presenting the report, Scheinin said he expected that, regardless of whether Barack Obama or John McCain wins next month's election to be the next President of the US, the new administration will take steps to close the detention facility at Guantnamo Bay. He said, in response to a reporter's question, that he based that observation on the public statements of Obama and McCain strongly criticizing the practices at Guantnamo Bay. He told journalists that he expects to visit Tunisia very soon, and several requests for visits to other countries remain pending, including those sent to Algeria, Egypt, Malaysia, Pakistan and the Philippines.