Former prime minister Yingluck Shinawatra will appeal against the Criminal Court's rejection of her lawsuit against attorney-general Trakul Winitnaiyapak and three prosecutors for alleged malfeasance in their handling of the rice-pledging case against her.
Norawich Lalaeng, her lawyer, said Ms Yingluck would petition the Appeals Court to reverse the decision.
The Criminal Court on Tuesday rejected Ms Yingluck's lawsuit, ruling that the prosecution's actions were lawful and in accord with criminal investigation procedures.