Much of the evidence translation literature focuses narrowly on the use of evidence in the initial policy formulation stages, and downplays the crucial role of institutions and the inherently political nature of policy making. More recent approaches acknowledge the importance of institutional and political factors, but make no attempt to incorporate their influence into new models of evidence translation. To address this issue, this article uses data from a comparative case study of bowel cancer screening policy in Australia, the United Kingdom and New Zealand, to propose alternative models of evidence incorporation which apply to all stages of the policy process.