The court ruling came a day after investigators sought arrest warrants for three suspects in the Laksi clash on charges of attempted murder. They are Wiwat Yodprasit, 24, Surachet Treenopparat, 49, and Danai (surname unknown).
According to police, Mr Wiwat, a native of Phitsanulok, was said to have fired a gun hidden in a corn bag to protect anti-government protesters during the shoot-out.
Mr Surachet from Bangkok was photographed holding a pistol while wearing a white T-shirt, a face mask and “PDRC Guard” armband.
Police have been able to identify four more suspects and are gathering evidence to seek court approvals for their arrest.