John Aikpokpo-Martins hails from Edo State. He is based in Warri, Delta State, where he practices law as a full time Private Legal Practitioner.

Mr Aikpokpo-Martins graduated from the Bendel State University, Ekpoma (now the Ambrose Alli University) in 1989, and was called to the Nigerian Bar in 1990. He did his National Youth Service in Rivers State and has been in private legal practice since 1992.

Mr. John Aikpokpo-Martins has served the Nigerian Bar Association in many capacities. He was the Chairman, NBA-Warri Branch, 2014 – 2016; Vice Chairman, Warri Branch, 2010 – 2012. He was elected the 1st Vice President of the Nigerian Bar Association and served from 2020-2022. He was also elected and is the present Chairman of the Nigerian Bar Association Section on Public Interest and Development Law (NBA-SPIDEL). He served also as a member of the Independent Investigative Panel on Human Rights Violations against SARS and other units of the Nigerian Police from 2020 to 2022.
He also served as a member of the Delta State Justice Sector Reform Team.