The investigation papers against former Prime Minister Tun Dr Mahathir Mohamad will be completed soon, said deputy police chief Datuk Seri Noor Rashid.

He said the papers will then be referred to the Attorney-General's Chambers office.

“We have opened several investigation papers against Dr Mahathir in regards to a few incidents including the Bersih 4 rally.

“These papers will be completed as soon as possible. Maybe in a week or two. We will then refer it to the Attorney-General's Chambers,” said Noor Rashid to reporters when asked about the development into Dr Mahathir’s investigation.

Dr Mahathir on Friday said he would leave it to the police to decide if they want to detain him.

He said that after giving his statement to a police team from Bukit Aman's Criminal Investigation Department at his office at Yayasan Al-Bukhary, here, Friday morning.

Deputy Prime Minister, Datuk Seri Ahmad Zahid Hamidi had last month said that three investigation papers against Dr Mahathir were opened following several police reports.

The investigation is believed to be done under Section 500 of the Penal Code which involved defamation.

Dr Mahathir had earlier openly criticised Najib’s administration and urged for him to step down.