His primary research interests are in bioethics, medical law, medical jurisprudence, biotechnology ethics and law, moral psychology, experimental philosophy and feminist philosophy. In the past, he explored issues in aesthetics and the history of philosophy. 

Jonathan has demonstrable research expertise in feminist approaches to bioethics, experimental philosophical approaches to bioethics and medical law, the ethics and law of new and emerging biotechnologies and the interactions between moral psychology and clinical ethics. He has also published widely in the fields of medical law, medical jurisprudence and public health policy, particularly on the tensions between capacity law, mental health law and human rights law, the relationships between autonomy, capacity, consent and legal decision making, the High Court’s inherent jurisdiction and the common law treatment of vulnerable individuals and children, the legal implications of Shared Decision Making, racial justice and drug laws, COVID-19 ethical guidance policies and environmental sustainability and health policy.  

He is co-principal investigator for an European-Commission-funded (Horizon 2020) project, ”Mapping Normative Frameworks for Ethics and Integrity of Research”.