Former Thai Prime Minister Yingluck Shinawatra has pleaded not guilty in a brief hearing at the start of her trial on charges of negligence.
She faces up to 10 years in prison if found guilty of negligence of duty over her role in a controversial rice subsidy scheme.
She told crowds outside the court in Bangkok she would prove her innocence.
Yingluck was forced to step down last year shortly before a military coup.
She maintains that the charges she faces are intended to keep her out of politics. The next hearing in the trial has been scheduled for 21st July.