 He then became the Chairman of the National Human Rights Commission of Nigeria (2003–2005) and Chairman of the Working Committee on Law Revision of the Laws of the Federation of Nigeria, 2000.The Secretary-General of the United Nations appointed Ayoola as President of Appeals Chamber of the Special Court for Sierra Leone (2004–2005), set up to try those responsible for the Sierra Leone Civil War.He has edited the Seychelles Law Digest, the Law Reports of the Gambia, and the Nigerian Monthly Law Reports.