This guide presents humane and cost effective mechanisms to prevent the unnecessary and damaging detention of refugees and aims to ensure that detention is only ever used as a last resort. Governments around the world are increasingly using detention as a migration management tool, with refugees, asylum seekers and migrants detained for prolonged periods. However, there are humane and cost effective mechanisms that prevent unnecessary and damaging detention and that ensure detention is only ever used as a last resort. The IDC has identified good practices from around the world and compiled them in a handbook, while also introducing a new model: CAP, the Community Assessment and Placement model. This report is a collaboration between the International Detention Coalition and the La Trobe Refugee Research Centre at La Trobe University Australia.