Dion is currently the Course Leader for the BSc (Hons): Criminology with Psychology degree. He has been a Lecturer in Psychology and Offending Behaviour within the School of Criminology and Criminal Justice since November 2021. His main research interests focus on Criminal Psychology, with his PhD exploring the differences between commuter and marauder serial offender profiles within the application of geographic profiling. 

In his lecturing role, Dion is involved at lecturing at all levels throughout the University, from lecture and seminar leading at undergraduate level, to supervising post-graduates. He is currently module coordinator for Abnormal Psychology, Psychology and Offending Behaviour, and Mental Health and Wellbeing.

Dion is a Chartered Psychologist (CPsychol) with the British Psychological Society.

Prior to joining the department, Dion was a partner in CrimePsych. 

Dion continues research within the space of Offender Profiling, with special interest in the application of Geoprofiling. His research branches out into Behavioural (Psychological) Profiling, Linguistic Profiling, Victim Profiling, Crime Scene (& linkage) Profiling, and Community Profiling.

In addition, Dion has special research interests in Psychologcal constructs that lead to Offending, Human Trafficking, and Forensic Psychology & Mental Health.

Dion is currently a Senior Lecturer in Psychology & Offending Behaviour, and teaches across the following areas:

• Psychology of Criminal Conduct
• Psychology for Criminologists
• Psychology and Criminal Justice
• Abnormal Psychology
• Contemporary Terrorism & Global Response
• Understanding Criminology
• Criminal Justice
• Researching Criminology
• Black Criminology
• Psychology and Security
• Crime and Society
• Investigation and Psychology
• Offender Profiling
• Psychology and Offending Behaviour
• Mental Health and Wellbeing (ProfPol)