A qualified solicitor in England and Wales (non-practising), Oliver spent over seven years as a legal officer at the United Nations, working in the trial and appeals chambers at the International Criminal Tribunal for Rwanda and International Criminal Tribunal for the former Yugoslavia. 

Since leaving the UN, Oliver has served as independent counsel, consultant and advisor to numerous civil society organisations, bar associations, regional bodies and individuals. He has appeared in cases before several international and regional courts and bodies including the International Criminal Court, African Court on Human and Peoples’ Rights, UN Human Rights Committee, and UN Working Group on Arbitrary Detention.

At ILP Oliver is focused on how emerging tools in the anti-corruption and accountability space, such as sanctions, can be best utilised alongside more established forms of accountability.