Professor Wahidin left Kent University after developing the undergraduate criminology programme with Professor Chris Hale, Professor Keith Hayward and Dr Emma Wincup. She was appointed Reader at Queen's University, Belfast where, with Professor Paddy Hillyard and Professor Mike Tomlinson, she established the undergraduate Criminology Programme. She has also been Programme Director and has held visiting positions at Melbourne, School of Political and Social Sciences; Middle Tennessee State University and the University of Malaysia.
Her research interests relate to social exclusion, the 'deviant' body, crime and crime control and social harm. Her writings are both theoretical and applied and have been influenced by the work of Michel Foucault and Judith Butler. She has conducted extensive prison research focusing on both prisoners and uniformed staff. In particular, her research has focused on elderly prisoners on both sides of the Atlantic; managing the needs of older offenders, the female prison estate, young offenders, transitions from custody, theories of punishment, the lifer system and resettlement.