Mohd Najib Abdul Aziz was born on 13 November 1950 in Sabak Bernam, Selangor.
Mohd Najib Abdul Aziz joined the Police Force on 11 November 1972 as an Inspector.
After completing basic police training, he was placed as a Vice/Gambling Officer of Criminal Investigation Department in Penang for 6 months.
During his service in the Royal Malaysia Police, he held positions such as Manjung District Police Chief, Perak, Deputy Director of Bukit Aman Narcotics Criminal Investigation Department, Kelantan Police Chief, Director of Bukit Aman Narcotics Criminal Investigation Department from 2004 to 2006.
[1] Mohd Najib Abdul Aziz is a member of the Board of Trustees for Yayasan Pengaman Malaysia.