Crossing boundaries and identification processes.

This article provides a commentary on seven papers published in a special issue led by J. Dahinden and T. Zittoun in this journal. The papers explore social polarisation, boundary making, inter-group dialogue and migrants' movement between groups in the context of religion. The exploration is undertaken from different disciplinary backgrounds and in various countries across Europe as well as in Australia. A critical engagement is developed with some of the key issues raised by the papers. This engagement begins by drawing on critiques of 'groupism' and then proceeds to consider the role played by process, power, knowledge and governmentality in the context of both time and space. The discussion is supported by illustrations from the case studies provided by the papers. The discussion also links issues raised by the papers to developments within Britain over time and in urban space, which involve the state, Muslim community representatives and the everyday practices of Muslim citizens in London, particularly those concerned with the body.