Michael Collyer is Professor of Geography at the University of Sussex. He is a political geographer with an interest in the relationship between people on the move and state institutions. His books include Migration (with Michael Samers) and Emigration Nations. He has held visiting fellowships around the world and was a Fulbright Scholar at the University of Washington. He currently chairs the Independent Advisory Group on Country of Origin Information, within the Office of the UK's Chief Inspector of Borders and Immigration. He also chairs Sanctuary on Sea, Brighton's City of Sanctuary group.