The National Council for Peace and Order (NCPO) has lodged complaints against eight leaders of the “We Walk” march.
All of the accused, except Anusorn, are representatives of people’s networks or non-governmental organisations.
Anusorn is the current dean of Thammasat University’s Faculty of Sociology and Anthropology.
Police have summoned the eight to face charges in connection with a rally that took place last Saturday. They say the rally, which drew about 150 participants, included anti-government and slanderous speech.
The accused suspects are required to answer to the summons on January 28.
“I think we will have to answer to the summons,” Nimit said.
The NCPO filed a complaint with Klong Luang Police in Pathum Thani on Sunday.
After the rally, the marchers set off from Thammasat University’s Rangsit Campus and to avoid violating the NCPO’s ban on the gathering of more than five people, had no more than four in it at any one time.
The organisers have planned for the march to cover 450 kilometres and end in Khon Kaen province.
The event has been organised to draw attention to the need for state welfare, universal healthcare, food security, freedom of expression, human rights and a just society for all.