In a four-hour appearance before the DSI on Thursday, they denied the DSI allegations of their involvement in the shootings of protesters in the 2010 political upheaval in Bangkok which resulted in the deaths of 91 people.
They refused to sign the DSI’s four-point statement of conditions which, among others things, bans them from travelling overseas.
Mr Abhisit said he would not appear before the DSI again, but that he would provide documents if additional information is required.
He said he will continue to appear on political stages and travel abroad without seeking DSI permission since he has never intended to flee.
The DSI also charged him with giving financial contributions to the Democrat Party by deducting funds from his parliamentary salary, but he has never signed a cheque for the purpose. Mr Abhisit is leader of the Democrat Party.
DSI Director General Tarit Pengdit is hosting a press conference on the subject today.