McAra grew up in Hull as an expat Scot, and returned to Edinburgh to study at University.
She joined the University of Edinburgh as lecturer in criminology in 1995 and has been Dean of the School of Law, a member of the Centre for Law and Society and the Global Justice Academy and Director of the Edinburgh Futures Institute.
McAra is an associate at the Scottish Centre for Crime and Justice Research (SCCJR).
[9] She is co-director (with Professor Susan McVie) of the Edinburgh Study of Youth Transitions and Crime,[10] a research programme funded by the Nuffield Foundation tracking the lives of young people in Scotland.
It is a major longitudinal study of a single cohort of around 4,000 people who started secondary school in Edinburgh in the autumn of 1998[10][11] The research highlighted how policing impacts on young people and that the structures of the criminal justice system in Scotland punish the poor, preventing them from escaping hardship.