Peter practices as a Barrister and Mediator. His practice centres on conflict management interventions, including mediation, facilitation, investigation, restorative justice conferences, complaints management and conflict coaching.

Peter was formerly the CEO of the Institute of Arbitrators and Mediators Australia and Director of Dispute Resolution Centres in the Department of Justice and Attorney-General, Queensland. Before this, Peter was Chief of Education, Training and Information with the United Nations Centre for Human Rights in Cambodia. In addition, Peter was the founding President of The Victorian Association for Restorative Justice, a Director of the Mediator Standards Board, a member of the ADR Committee of the Victorian Bar and a VCAT mediator.