Leaders of the red-shirt United Front for Democracy against Dictatorship (UDD) on Tuesday expressed concerns about the inclusion of soldiers in the Department of Special Investigation's (DSI) panel investigating the military's lethal 2010 crackdown on red-shirt protesters.
UDD leaders including Jatuporn Prompan, Nattawut Saikuar and Weng Tojirakarn met DSI director-general Suwana Suwanjuta at her office on Tuesday morning to air their feelings on the investigation into the crackdown by the former Abhisit Vejjajiva government on the red-shirt protests in 2010.
About 90 people died in the clashes between the military and UDD supporters, most of them red-shirt supporters but also soldiers, police and innocent civilians.
Mr Jatuporn said they were worried about a change to the DSI's investigating team to include several soldiers, and that there might be attempts to tamper with the investigation.
He also claimed there was no proof that black-clad armed men had used weapons against people and government forces during the protest.
DSI director-general Suwana said no one interfered in the DSI investigation and its investigators' conclusions were based only on evidence and witness testimony.
She said seven soldiers were appointed to assist the DSI investigators only as coordinators in seeking information from the military.
Mrs Suwana turned down Dr Weng's request that lawyers be allowed to listen in on the interrogation sessions. The process involved classified information and DSI officials not involved in the case were also screened out, she said.
DSI deputy director-general Wannapong Kotcharag said the Metropolitan Police Bureau would send its autopsy reports on 27 of the people who died during the crackdown to the DSI this week.