Magu, was born in Maiduguri township on 5th May 1962 to the family of Mallam Mustafa Magu and Hajiya Bintu Magu. He attended Yarwa Practicing Primary School in Maiduguri between 1969 and 1975. He studied for his West African
 School Certificate at  Government Secondary School Waka Biu from 1975 to 1980. To further his education, Magu
 obtained ‘A’ level Certificate from the School of Basic Studies, Ahmadu Bello University Zaria in 1982 and between 1983 and 1986 studied for a degree in Accounting at the Institute of Administration, Ahmadu Bello University, Zaria graduating with a Bachelor’s of Science  Honors in Accounting. He served as the NYSC Accountant at the Benue State Health Services Management Board, Makurdi and in 1987 was appointed full time Accountant II by the Borno State Government where  he served in various Ministries and Departments in the State Government as an Accountant and rose to become a Zonal Accountant, State Ministry of Education, Biu from where he voluntarily resigned to join the Nigeria Police Force as an  Assistant Superintendent of Police in 1990. After his mandatory eighteen months training as cadet trainee, he was posted to the Rivers State  Police Command where he served in various capacities as Crimes Investigation Officer, Commander  Patrol and Guards and Unit Commander in the Police Mobile Force Unit. He has also served at the  Police Force Headquarters Kam Salem House Lagos in 1998. He was the Coordinator, Nigeria Police Building Society before moving  on to the newly established Special Fraud Unit (SFU) of the Nigeria Police Criminal Investigations Department (CID) where he served as a team  leader in charge of Financial Crimes, Money Laundering and Advance Fee Fraud investigation. 
In 2002, he was promoted Superintendent of Police (SP) and posted to Ekiti Police  Command; he also served briefly in the FCT Command Headquarters as the  officer in charge of  General Investigation and Monitoring Unit before he was seconded to the newly established Economic and Financial Crimes Commission (EFCC) in May 2003 where he was appointed its pioneer Head of Administration and Finance. He later headed the Economic Governance Section of the Commission,  dealing with general investigations, financial crimes and money laundering in both the public and  private sector. He was promoted Chief Superintendent of Police (CSP) in 2003.
 In a bid to sanitize the country and ensure best international practice in government  business, the President of the Federal Republic of Nigeria commissioned a Joint Special  Presidential Task Force on Good Governance in June 2006. Mr. Magu was deployed  as its Supervising officer and Head of
 Administration.  In 2009, Magu was redeployed to the Nigeria Police and posted to State Criminal  Investigations Department Ekiti State Police Command as its deputy head. He also served in the Anti-Fraud Investigations Section of the Force Criminal Investigations  Department between 2010 and 2012; and was also the Second-in-Command, Special Investigation Bureau  (SIB), Nigeria Police Force Headquarters.
 Magu was promoted Assistant Commissioner of Police in September 2012 and posted briefly  to Anambra State Command as Assistant Commissioner of Police (Operations), before he was  redeployed to the Economic and Financial Crimes Commission  as the Deputy Director, Directorate of Professional Responsibility. He attended several courses,  seminars and workshops notably on Anti-Money Laundering courses with the Federal Bureau of Investigations; Anti-Terrorism and Combating the  Financing of Terrorism with the United State Department of Justice, United States Department of  Homeland Security, amongst others.
 He served in various Committees and participated in a number of ad hoc assignments which  include Technical Committee on the Establishment of the Nigeria Finance  Intelligence Unit; member,  Federation Accounts Allocation Committee; member Presidential Task Force on the  Decongestion of Eastern Ports; member, Federal Government  Committee on Cyber Security Legislation in Nigeria. Magu is currently a member  of the Presidential  Investigation Committee on the Procurement of Firearms from 2007 – 2015.
 At the International sphere, Magu has engaged with the United States Postal Inspection  Service, the FBI, the US Securities and Exchange Commission, the US Financial Crime  Enforcement Unit (FINCENT), the South African Anti-Corruption Unit (Scorpion)  and the Hong Kong Anti-Corruption Agency, on trainings and/or joint  investigations. He has also  collaborated with the Metropolitan Police, London, Her  Majesty’s Customs and Excise  and Scotland Yard. He worked with the United States  government in the WILBROS Bribery Investigation, the Halliburton Investigations. He  has also closely worked with the CBN, Securities and Exchange Commission (SEC), the Nigeria  Customs Service, the Nigeria Finance Intelligence Unit, Department of State Services,  Independent Corrupt Practices Commission (ICPC), the Code of Conduct Bureau and the Nigeria Police.  Magu who is currently a Deputy Commissioner of Police was appointed acting Chairman of the EFCC on November 9, 2015. He enjoys travelling, playing football, reading and writing.
He is married with three children.