I currently teach and research theology and the study of religion in a Catholic context but my professional life has been marked by working on boundaries. Having initially trained as a biologist and taught biology for some years at various universities I engaged in some further study in theology and then the sociology of religion. Since then, my research interests have included science and religion in education, marine pollution and the ethnographic study of religious groups in transition in England and Northern Ireland. I am also a trained mediator and for nearly two decades I have worked with communities, families and religious groups to seek conflict resolution.