Deputy Inspector-General of Police Noor Rashid Ibrahim said they had recorded statements from many witnesses, including Nazrin’s widow and family members, and would complete the investigation papers.

“Many people were arrested, including the widow and her ex-husband, stepchild and sister-in-law and her husband. But they have been released after being investigated.

“Hence, we will complete the case soon,” he said after officiating the Royal Malaysian Police (PDRM) Innovation Day 2018 celebration at Universiti Sains Malaysia here today.

On Aug 3, Nazrin’s death was reclassified as a murder case under Section 302 of the Penal Code following an investigation by the fire department that found traces of gasoline at the scene.

He died in a fire at his home in Mutiara Homes, Petaling Jaya, on June 14.

The best PDRM Innovation award went to D’Aman III from Kedah police contingent headquarters, who worked on an intervention project on prevention and drug abuse among students.

In the Persada Innovation Improvement category, the award went to the Start Go Green (S3G) Group from Bukit Aman’s Strategic Resources and Technology Department, which introduced an online PDRM Go Green Report System.

The inventor award was won by the Marine Invention Group from Kuching, Sarawak’s Region 5 Marine Police, for its M-Poert project.

All winners received RM5,000 cash, trophies and certificates.