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Personal profile

Scholarly biography

Dr Hannah Cassidy is a Lecturer in Forensic Psychology at the School of Applied Social Science. Following the completion of her PhD at the University of Portsmouth, she joined the University in September 2017. Prior to this, she completed her undergraduate studies in Psychological and Educational Sciences at the Université Catholique de Louvain in Belgium (2009-2012) and a Masters in Forensic Psychology at the University of Portsmouth (2012-2013).

Research interests

I am interested in children being involved in the criminal justice system, whether it be as victims, witnesses or suspects. My PhD research focused on detecting children’s false allegations, but now I place more of an emphasis on understanding how to avoid children’s false denials. Currently, I am very interested in exploring police interviewers’ experiences of interviewing adolescents about abuse and the role that culture plays in their disclosure. Furthermore, I am also interested in how the perceived social acceptability of certain types of lies affect truth/lie decision-making.


My research interests can, therefore, be summarised as Investigative Interviewing, Interviewing Children and Adolescents, Disclosure of Abuse, and the Deception Decision-Making Process.

Approach to teaching

I primarily design and deliver lectures on the Forensic Psychology module but I also teach seminars on Psychology of Security, Developmental Psychology, Introduction to Research Methods, Introduction to Applied Psychology, and Psychology, Cognition & Social Worlds. I also supervise final year dissertation students, usually investigating forensic topics.


My goal when teaching is to engage students and to get them excited about the topic we’re discussing. In my lectures and seminars, I like to challenge students’ beliefs about a subject and broaden their understanding. For example, in my lecture on Offender Profiling in the Forensic Psychology module, I have to address the media’s portrayal of offender profiling, through TV and films, and highlight the potential limitations of this investigative approach. This way students can view their favourite TV shows with a more critical eye. I also enjoy incorporating technology into my teaching and getting my students to apply the knowledge discussed in the lecture. This involves creating online quiz games, using video examples, and creating online playlists.


Where possible, I endeavour to integrate my research into my teaching. As an active researcher, I am able to give my students insights into areas of Child Interviewing and Deception that have yet to published! Having worked with police child interviewers, I am also able to demonstrate the applied importance of my research and can highlight potential obstacles that the police face.

Supervisory Interests

I would be very interested in supervising postgraduate students conducting projects on:

  • Adolescent discourses surrounding sex in different cultures/countries;
  • Development of telling secrets and lies (decision-making, social context, motivation);
  • Online deception (use of impression management strategies to explore online identity);
  • Challenges facing police who interview child and adolescent victims of abuse;
  • Perceptions of children with sexually harmful behaviour towards other children.

Fingerprint Dive into the research topics where Hannah Cassidy is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

  • 2 Similar Profiles
Aptitude Medicine & Life Sciences
Deception Medicine & Life Sciences
Lie Detection Medicine & Life Sciences
Maintenance Medicine & Life Sciences
Interviews Medicine & Life Sciences
abuse Social Sciences
adolescent Social Sciences
research interest Social Sciences

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2016 2018

Exploring the Decision Component of Activation-Decision-Construction-Action Theory for Different Reasons to Deceive

Cassidy, H., Wyman, J., Talwar, V. & Akehurst, L., 24 Jul 2018, (Accepted/In press) In : Legal and Criminological Psychology.

Research output: Contribution to journalArticleResearchpeer-review

The effect of group deliberation and the results of a competency test on judgements of child witness credibility

Akehurst, L., Cassidy, H. & Hayter, C., 1 Jan 2018, Deception & Deceptive Communication: Motivations, Recognition Techniques and Behavioral Control. Chiluwa, I. (ed.). New York, US, p. 37-66 30 p.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNChapterResearch

Lie Detection
Knowledge of Results (Psychology)

'Look this way': Using gaze maintenance to facilitate the detection of children's false reports

Cassidy, H., Akehurst, L., Leach, A-M., Cherryman, J., Vrij, A., Arathoon, M. & Vernham, Z., 20 Dec 2016, In : Applied Cognitive Psychology. 31, 1, p. 69-80 12 p.

Research output: Contribution to journalArticleResearchpeer-review

Open Access

Activities 2018 2019

  • 2 Publication Peer-review
  • 1 Oral presentation

Child Abuse & Neglect (Journal)

Hannah Cassidy (Reviewer)
22 Mar 2019

Activity: Publication peer-review and editorial workPublication Peer-review

Effect of Defendant Age and Juror Gender in Perceptions of Child-on-Child Sex Offences

Hannah Cassidy (Presenter)
27 Jun 2018

Activity: External talk or presentationOral presentation

International Journal of Law, Crime and Justice (Journal)

Hannah Cassidy (Reviewer)
31 Oct 2018

Activity: Publication peer-review and editorial workPublication Peer-review