The National Human Rights Commission (NHRC) will summon Deputy Prime Minister Chalerm Yoobamrung to testify at the December 7 hearing on the Pitak Siam rally.
The NHRC is expected to complete its fact-finding probe within 30 days, before drawing its conclusion on alleged human rights violations in connection with the rally.
Police fired teargas canisters and clashed with protesters at Makawan Rangsan Bridge near Government House on November 24.
“Should abuses be found, the NHRC will make recommendations for relevant agencies to rectify the situation,” commission member Niran Pitakwatchara said.
Although the NHRC has no power to enforce its recommendations, it can initiate a judicial review on the victims’ behalf, he said.