ALHAJI GBENGA OYELEKAN was born in 1952 to Chief Imam Abdul-Quadri Alatise Oyelekan and Alhaja Mosuratu Abeke Oyelekan. He is a native of Shagamu in Ogun state. He attended Methodist Boys High School, Lagos.
After graduating with a Bachelors Degree (Hons.) in Economics from Ahmadu Bello University, Zaria, in 1973, he went to University of Portsmouth, England, where he obtained a Masters Degree in international Criminal Justice System in 1976.
In 1977, ALHAJI OYELEKAN taught Economics at Government Day Secondary School, Gunduma, Keffi, Plateau State and in 1984, he became the Vice Principal at the School.
In 1986, ALHAJI OYELEKAN found his true calling and, he joined the Nigerian Police Force as a Cadet Assistant Superintendent of Police.
ALHAJI OYELEKAN attended Police College in Ikeja, Lagos State. After graduating at the top of his class, he was posted to Mgbidi Police Station, Imo State, as the Divisional Crime & Administrative Officer.
ALHAJI OYELEKAN has served at many levels both nationally and internationally, such as Officer in charge of General Investigation at the Nigeria Police Force Zone 6 Headquarters in Calabar, Director-In-Charge of peacekeeping training Nigerian Police, Ogun state, Deputy Commissioner of Police in Enugu State Police Command. ALHAJI OYELEKAN was on a peacekeeping mission to different countries in West Africa including Sierra Leone, Gambia and Liberia.
In 2004, ALHAJI OYELEKAN was promoted to Commissioner of Police in Ogun State. ALHAJI OYELEKAN served as a Commissioner of Police in Ogun until he retired in 2009 at the age of 57.