Lawyers representing law professor and constitutional expert Abdul Aziz Bari will this week send notices of demand to former premier Dr Mahathir Mohamad, Utusan Malaysia and Kulim Bandar Baru MP Zulkifli Nordin.

The notices require that the three apologise and pay some form of compensation following their statements or publications which had put Abdul Aziz in bad light, failing which defamation suits will be filed against them.

"We have received instructions to send the notices of demand from Abdul Aziz and we will send them from tomorrow," Aziz's lawyer, Mohd Hanipa Maidin, told Malaysiakini .

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Mahathir had said that Abdul Aziz's remarks were disrespectful and contrary to eastern values.

mahathir responses to suaram report 01 The law professor has responded by pointing out that what Mahathir had ( left ) said, and his actions in 1983 and 1993 over the monarchy, were far worse.

Abdul Aziz said Utusan Malaysia had twisted what he said to Malaysiakini to portray him as insolent, disrespectful and stubborn.

As for Zulkifli, he had made statements in the media including in Utusan Malaysia, that Abdul Aziz should resign from his academic posts and that the academician was disrespectful and should apologise to the Sultan of Selangor.

Hanipa said the professor is also considering taking action on Senator Ezam Mohd Nor following his statements to the media based on Utusan Malaysia reports which has led to the ongoing investigations by the Malaysian Communications and Multimedia Corporation and the police.