
In particular, it condemns the former PM for joining forces with Cambodian Prime Minister Hun Sen "to interfere in the country's justice system and for giving an interview deemed insulting to the country's monarchy".
PAD coordinator Suriyasai Katasila said the group had decided to come out against Thaksin after his two latest moves - appointment as adviser to the Cambodian government, and for giving an interview on Sunday to Britain's Times Online, with content considered in contempt of the monarchy.
"These two actions by Thaksin are totally unacceptable,'' he said.
PAD supporters will gather to express their love and loyalty to the His Majesty the King and to let the world community know that Thais will not let "the traitor'' speak in contempt of the King. They will join forces to protect the country's integrity and not let other countries insult the country's justice system, Suriyasai said.
They will also together condemn Thaksin and Hun Sen for actions that "put the country's integrity in jeopardy".
New Politics Party leader Sondhi Limthongkul said Thaksin had committed political suicide by giving an interview to Times Online with content deemed disrespectful to the high institution.
Though Thaksin denies the allegation, Times Online has proven his argument wrong by posting his full interview on the website, Sondhi said.
Thaksin's decision to accept the position of adviser to the Cambodian government is an act of treason because, as a former premier, he had inside information about the country and was planning to use it for self-gain and to jeopardise Thailand.
He said there were political implications behind Cambodia choosing to side with Thaksin. The neighbour would let Thaksin set up a government in exile on Koh Kong and use it as a base to disturb the peace in Thailand, Sondhi said.