In this Malay name, there is no surname or family name. The name Hassan is a patronymic, and the person should be referred to by their given name, Musa. The word "bin" or "binti"/"binte" means 'son of' or 'daughter of', respectively.
1975 – PT CAD Records/Statistics (Anti – Drug Branch, JSJ Bukit Aman)/Inspector
1981 – PPP Bahagian 'A' CAD (Anti – Drug Branch, JSJ Bukit Aman)/ASP
1985 – PPP CAD Technical Assistance Specialist (Anti – Drug Branch, JSJ Bukit Aman)/ASP
1986 – Lecturer in Law (PDRM College, Kuala Kubu Baru)/ASP
1988 – Deputy Head of Law School (PDRM College, Kuala Kubu Baru)/DSP
1991 – TPP Training B1 (Training Branch, Bukit Aman Management Department)/DSP
1992 – PP Training (Examination) (Training Branch, Bukit Aman Management Department)/Supt
1995 – Assistant Director of Prosecution/Law (JSJ Bukit Aman)/ACP
1997 – Assistant Director of Prosecution/Law (JSJ Bukit Aman)/SAC II
2000 – Deputy Director II (JSJ Bukit Aman)/SAC I
2001 – Deputy Director I (JSJ Bukit Aman)/DCP
2003 – Johor Police Chief/DCP
2004 – Director of JSJ (JSJ Bukit Aman)/CP
2005 – Deputy Inspector General of Police/DIG
2006 – Inspector General of Police/IGP
2010 – Retired from the force at 58
Inspector-General of Police
He took over the post from Mohd Bakri Omar in September 2006; Hassan had previously worked as Deputy Inspector-General under him.[3]
Soon after he was investigated on allegations of corruption related to the release of three members of illegal betting syndicates, however, Attorney-General Abdul Gani Patail ordered the Anti-Corruption Agency to close the investigations in July 2007 for lack of evidence.[4] Two months later, it was announced that he would receive a two-year extension of his term to 13 September 2008, despite having reached the mandatory retirement age.[2]
In March 2010, Home Minister Datuk Seri Hishammuddin Hussein said that the government will find a replacement for Inspector General of Police Musa Hassan shortly.[5][6][7][8]
Finally, on 13 September 2010 Musa resigned as Inspector-General of Police after serving for more than 3 years. Subsequently, his deputy, Tan Sri Ismail Omar, was promoted to be the new Inspector-General.[9] On 29 April, Musa was appointed Pakatan Rakyat's security advisor.[10]
Post-Retirement
After his retirement from the police service, Musa has continued to accept many speaking invitations to discuss topics related to crime trends and integrity in the police force. From late 2021 to mid-2022, he was involved with an organization opposing human trafficking and scam syndicates.
Family
Musa Hassan, a Malay of Banjarese descent,[11] is the eldest son of Hassan Azhari (1928–2019), a Koran teacher and famous Qiraati in Malaysia. He received his education in Kuala Lumpur, and has two brothers, Fuad Hassan, a politician (1949–2014), and a younger one, Jalaluddin Hassan (born 1954), an actor.[12] He was from Bukit Bintang Boys' Secondary School.