 He was a member of Channel 4's Street Weapons Commission and later adviser to London Mayor Boris Johnson on serious youth violence in the capital.Since 2006 Gus John has been a member of the African Union's Technical Committee of Experts working on "modalities for reunifying Africa and its global diaspora".He has advised member states in Africa and the Caribbean (Cameroon, Somaliland, Lagos State Government, Jamaica) in meeting the Sustainable Development Goals related to education and youth.