Mo was admitted as a solicitor in 2007 and after a short period in commercial practice began her doctoral research in 2009. Funded by the Scottish Institute for Policing Research she examined the policing of money laundering in a cross-jurisdictional context. In 2010 she was a founding member of the UACES Policing and European Studies Network which seeks to provide a forum of knowledge exchange for academic researchers, police practitioners and policy makers engaged in policing cross-border crime or crimes of cross national concern. In 2014, she was appointed to the Law Society of Scotland Anti-money Laundering Panel as the academic expert. In 2015, she was appointed to the Editorial Board of the Journal of Political Criminology and Secretary of the Crime and Security Policy Network. Dr Egan continues to research in the field of justice and home affairs focusing on financial crime, inter-agency cooperation in policing, and in particular, the interplay between state and non-state agencies in the delivery of criminal justice.