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Institute of Criminology



Katrin’s PhD research is on older adults’ eyewitness performance and investigative interviewing. Her project aims to examine the effectiveness of a new investigative interviewing tool, the Self-Administered Interview (SAI), for older adult witnesses, with respect to its impact on the quality and quantity of the testimony, person identification performance and the susceptibility to suggestions. The PhD is being supervised by Dr. Katrin Müller-Johnson. In support of her studies, Katrin has been awarded a Gates Cambridge Scholarship.

Education and Work

  • 2011-2012 MPhil, Criminological Research, University of Cambridge, UK
    Thesis: ‘Person Identification Performance of Older Adults: The Impact of Circadian Rhythm’. Supervisor: Dr. Katrin Müller-Johnson
  • 2010-present Further Education in Legal Psychology, German Psychological Academy (DPA), Berlin, Germany. Expert witness training.
  • 2009-2011 Forensic Psychologist, State Hospital for Forensic Psychiatry, Uchtspringe, Germany. Therapy and risk assessment of sex offenders.
  • 2004-2009 Diploma, Psychology, University of Magdeburg, Germany.
    Thesis: ‘The Impact of Circadian Rhythm on Eyewitness Performance in Older Adults’. Supervisor: Dr. Katrin Müller-Johnson


  • Older adult witnesses
  • Witness testimony
  • Person identification performance
  • Suggestibility
  • Investigative interviewing
  • Self-Administered Interview
  • Sex offenders
  • Risk assessment


Research Experience

  • 2008-2009 Research Assistant, Institute of Criminology, University of Cambridge, UK
  • 2007-2008 Research Assistant, Department of Neuropsychology, University of Magdeburg, Germany
  • 2006-2008 Research Assistant, Department of Experimental Psychology, University of Magdeburg, Germany


Grants and Awards

  • 2012-2015 Gates Cambridge Scholarship, University of Cambridge, UK
  • 2012 Manuel Lopez-Rey Graduate Prize, Institute of Criminology, Cambridge, UK
  • 2008-2009 European Union Erasmus Programme, University of Cambridge, UK


Professional Affiliations

  • Reviewer for ‘Policing: A Journal of Policy and Practice’ (2013)
  • Member of the International Investigative Interviewing Research Group (iIIRG, 2013)
  • Member of the South East Eyewitness Network (SEEN, 2012)
Ph.D Student
 Katrin  Pfeil