This paper compares the dynamic of issue attention for the High Court of Australia (1980-2014) and the New Zealand Supreme Court (2004-2014). Using the Comparative Policy Agenda framework, we coded the policy content of each court’s decisions for the specified periods of time. The paper examines how the courts’ policy agendas changed over time. It argue that differences in the two high courts' agendas derives from structural differences in their respective political systems.