Marcus is an Associate Professor in Law. He undertakes research, supervision and teaching in the field of technology law and regulation. His recent publications include Technology Law: Australian and International Perspectives (Cambridge University Press, 2021) and Biometric Identification, Law and Ethics (Springer, 2021). Marcus publishes in Australian and international journals, presents in a wide range of fora and contributes to government law reform. His earlier books include Biometrics, Crime and Security (Routledge, 2018) and DNA Evidence in the Australian Legal System (LexisNexis, 2016); and his articles are featured in a wide range of journals, including: ANU Journal of Law and Technology, Bioethics, Legal Education Review, Internal Medicine Journal, Journal of Law and Medicine, University of New South Wales Law Journal, Criminal Law Journal, Australian Law Journal and Australian Journal of Forensic Sciences.