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Dr Nathan Ryan



PhD BPsych(Hons)


Dr Nathan Ryan is a researcher and lecturer at the Australian College of Applied Professions, Melbourne. Nathan completed his doctorate at the School of Criminology and Criminal Justice at Griffith University. His primary research area is in the investigation process in missing body homicide investigations with a focus on investigative interviewing to retrieve the spatial memory of suspects and patterns of hiding behaviour. Nathan has conducted research investigating both perceptions of rape trial testimony and conducted interviews with incarcerated domestic violence offenders. He has additional knowledge in the psychology of criminal behaviour, theory of policing and research methodology. In addition, he has conducted training programs in witness suggestibility and the psychology of offenders for the Queensland Police Service as part of their detective training program.


  • Ryan, N & Westera, N. (2018). The effect of expert witness testimony and complainant cognitive statements on mock jurors’ perceptions of rape trial testimony. Psychiatry, Psychology and Law. doi: 10.10880/13218719.2018.1471815
    • Ryan, N. C., Westera, N. J., Kebbell, M. R., Milne, R., Harrison, M. (2019). Where is the body? Investigative interviewing strategies in missing body homicide cases. Investigative Interviewing Research and Practice, 10(1), 62-77
    • Ryan, N. C., Kebbell, M. R., Westera, N. J., Milne, R., & Harrison, M. (2020). To know where the bodies are buried: The use of the cognitive interview in an environmental scale spatial memory retrieval task. Applied Psychology, 34, 565-576
    • Ryan, N. C., & Kebbell, M. R. (2021). Developing a psychological research base for Criminal Investigations: Academics and Practitioners working together. In P. Marques (Eds.), Police Psychology.

Teaching and Coordination Responsibilities

  • JALE1044 Foundations of Justice.
  • CRIM2054 Crime Prevention.
  • JALE2024 Drugs and Crime.

Professional Affiliations and Fellowships

Member of the International Investigative Interviewing Research Group (iIIRG).

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