is a Lecturer in Criminology in the School of Social Sciences and a member of the Sexualities and Genders Research (SaGR) strand. He is an early career researcher and recently published his first book, Reimagining Disablist and Ableist Violence as Abjection, with Routledge's Interdisciplinary Disability Studies series. He has published in a range of leading journals, including Theoretical Criminology, Disability & Society, Porn Studies, and the International Journal for Crime, Justice, and Social Democracy. Ryan's previous work has focused on hate crime and vulnerability, and his current research areas, sitting at the intersections of criminology and sociology, include ableism, crip theory, critical disability studies, porn studies, mad studies, violence, and abjection. He is broadly interested in the ways in which marginalised populations are constituted and regulated, and is particularly interested in their experiences and understandings of violence.