
Yingluck is due to be present at the court Friday for her first testimony on criminal charge against her regarding rice-pledging scandal.
By 7:30 am, several Pheu Thai key figures, including party secretary- general Phumtham Wechayachai and Plodprasop Suraswadi, turned up at the court to show support to Yingluck.
Over 150 policemen were deployed to stand guard around the Supreme Court in Government Complex on Chaeng Watana Road to control the crowd.
Yingluck arrived at the Supreme Court at 8 am to give her testimony in the rice-pledging criminal case against her.
Hundreds of supporters waited for her at the court and shouted "fighting PM" with some screaming "love you, PM".
During a breif press interview before entering the court's entrance door, Yingluck urged people to exercise voting rights in Sunday'referendum on charter draft, saying it is an important day to determine the country's future. She spoke with tears briming in her eyes after she flashes familiar smiles.
She also called for fair justice on the trial, saying the rice-pledging scheme benefits farmers over the country.