BANGKOK, May 30 (Xinhua) -- A sense of anxiety hang over Thailand, especially the capital Bangkok Wednesday morning, as political groups and the public await a crucial verdict by the Constitution Tribunal deciding whether to dissolve the country's two major political parties, set to be announced in the early hours of afternoon.

    Over 13,000 soldiers and policemen have been ordered to stand by in greater Bangkok to monitor and control any possible disturbance, which is likely to occur if either of the two parties, former ruling party Thai Rak Thai (TRT) and the oldest party the Democrat, was ordered to disband, security authorities have said.

    Many schools in the city have canceled classes Wednesday, while foreign embassies warned nationals to stay away from sites where demonstrations are likely to be staged.

    Local media quoted sources as saying that the Constitution Tribunal had on Tuesday reached the verdict that would conclude the long-running trials involving five political parties accused of electoral fraud on April 2 last year, including Thai Rak Thai (Thai Love Thai), the Democrat, and three small parties -- Phaen Din Thai (The Thai Country party), Pattana Chart Thai (Development of Thailand party) and Prachatippatai Kao Na (Progressive Democracy).

    If found guilty, the parties face dissolution and their executive members would be forbidden from running for political office for five years in the worst scenario, according to legislative and political analysts here, who based their judgment on the Interim Constitution installed by the Council for Democratic Reforms (CDR, now named the Council for National Security, CNS) led by military figures who ousted then prime minister Thaksin Shinawatra, former leader of the TRT party, in the Sept. 19 coup last year.

    The focus is on the TRT and the Democrat, the country's two biggest parties. If disbanded and its key members kept out of politics for five years, the two parties would lose at least large stakes on winning the up-coming general elections, set in December.

    The combined verdict is scheduled to be read to the parties after 1:30 p.m. (0630 GMT), after the nine Constitution Tribunal judges, all senior judges either from the Supreme Court or the Supreme Administrative Court, held a closed-door meeting Tuesday.

    The Constitution Tribunal was set up by the CDR, who have authorized it to carry out the tasks of the Constitution Court, which was abrogated after the CDR staged the coup.

    All the tribunal judges were asked to keep the final verdict secret, and their mobile phone communication was cut to avoid leak.

    The state media Thai News Agency quoted Prime Minister Surayud Chulanont as saying Tuesday that he believed the verdict would not lead to violence, adding that whether or not an emergency decree would be declared in greater Bangkok would depend on the development of situation.

    Army chief Sonthi Boonyaratkalin, who also serves as CNS chairman, assures that declaring a state of emergency would only be used as a last measure.

    The Democrat Party has said that it would still use the old name of Democrat for a newly set-up party if the ruling orders its dissolution and forces it to register a new entity.

    While Thai Rak Thai party's acting leader, Chaturon Chaisang told party members and supporters not to arouse any disturbance whatever the verdict would be, worrying that the authorities like CNS might blame the party for any turmoil.