The lawyer for Singapore Democratic Party's Chee Soon Juan and Chee Siok Chin has amended his defence to "correct the facts of the case".
M Ravi, who is representing the Chees, had on Wednesday submitted their defence of a defamation suit filed by PAP leaders.
Prime Minister Lee Hsien Loong and Minister Mentor Lee Kuan Yew had sued the SDP's Central Executive Committee (CEC) for alleged defamatory remarks made in The New Democrat, the party newsletter.
Except for Dr Chee, his sister and the party, the rest of the CEC members have apologised.
In the amended defence, the Chees are now admitting that they were responsible for printing, publishing, selling and distributing The New Democrat.
They are also admitting responsibility for its content.
Chee Siok Chin is also admitting that she participated in a protest outside the CPF building in August last year.
Other points that the Chee siblings are admitting include the fact that MM Lee had previously sued Tang Liang Hong and J B Jeyeratnam for defamation.
The Chees are also admitting that Dr Chee Soon Juan had apologised to Mr Lee and had been declared bankrupt.
In their previous defence, they had denied all these points. - CNA/ir