Koen Geijsen PhD – personal webpage

Koen Geijsen

personal webpage

about me

I work at the National Intelligence, Expertise and Operational Support Unit (Eenheid Landelijke Expertise en Operaties; LX).
My primary responsibility involves assisting in the development of the Infra Academy, an in-house educational team that provides specialized training to (new) police officers.

From 2018 – 2024, I was a scientist at Team Research at the Police Academy of the Netherlands.
My research topics were traditional Dutch interrogation methods (verhoor/’combination package’) vs. investigative interviewing (verhoor 2.0),
organisational change management and development, and police integrity.

‘The aim of science is not to open the door to infinite wisdom, but to set a limit to infinite error’ (Bertold Brecht)

Experience

Senior Police Officer, Infrastructure Division, National Intelligence, Expertise and Support Unit (LX) (2024 – now)
Scientific Researcher, Team Research, Department of Knowledge & Research, Police Academy of the Netherlands (2018 – 2024)
Police Lieutenant (OS-B), Infrastructure Division (North-West), Central Unit (Feb – Jul 2022)
Senior Police Officer, Team Centrum-Amstel, Amsterdam Police Department (2016 – 2018)
Member of ‘Pink in Blue’, the LHBTI+ network of the Dutch police (1998 – 2005, 2016 – now)
Psychologist in training / internship (2012 – 2013)
Senior Police Officer, National Police Agency of the Netherlands, Traffic Police Department, Breda (2008 – 2011)
Police Lieutenant, Region Police Midden & West Brabant, Tilburg (2006 – 2008)
Senior Police Officer, Region Police Brabant Zuid-Oost, Eersel (2005 – 2006)
Police Sergeant, Region Police Amsterdam-Amstelland, Traffic Department (2003 – 2005)
Management Development Trainee, Region Police Amsterdam-Amstelland (2000 – 2003)

Education

Executive Certificate (former MBA) in General Management at the Open University of the Netherlands (2016-2021)
PhD in Forensic Psychology at Maastricht University and the Police Academie of the Netherlands (2014-2018)
Master in Clinical Psychology at the Open University of the Netherlands (2012-2013)
Bachelor in Psychology at the Open University of the Netherlands (2007-2012)
Executive Master in Tactical Policing at the Police Academy of the Netherlands (1996-2000)

Foto: Waldie Rutten Fotografie

Verhoor 2.0

basisboek investigative interviewing

In the new “textbook investigative interviewing: interrogation 2.0” modern police interviewing is explained to Dutch police students. Investigative interviewing is the most effective and efficient (evidence-based) way to obtain valid information of victims, witnesses and suspects.

Authors:
Dr. Koen Geijsen
Prof. Lore Mergaerts (KU Leuven)
Prof. Henry Otgaar (Maastricht University & KU Leuven)
Prof. Corine de Ruiter (Maastricht University)

Publisher: Gompel&Svacina

Click on the cover to preview and to buy our new textbook.

phD thesis

Persons at risk during interrogations in police custody

Different perspectives on vulnerable suspects

My PhD thesis addresses the prevalence of psychological vulnerabilities in police suspects. In addition, police interrogations of vulnerable suspects and the influence of police detention center environments on suspects are explored. This was the first (exploratory) research on these subjects in the Netherlands.

Supervisors:
Prof. Corine de Ruiter (Maastricht University)
Prof. Nicolien Kop (Police Academy of the Netherlands)

Assessment committee:
Prof. Marko Jelicic (Maastricht University)
Prof. Robert Horselenberg (Maastricht University)
Prof. Harald Merckelbach (Maastricht University)
Prof. Christianne de Poot (Vrije Universiteit Amsterdam)
Prof. Eric Rassin (Erasmus University Rotterdam)

Click on the cover to view and to download my thesis.

publications

Geijsen, K., & Horselenberg, R. (2024). Het verhoor van verdachten 2.0. In J. W. de Keijser, R. Horselenberg, & A. Vredeveldt (Eds.), Tussen wet en wetenschap: De psychologie van het recht. Boom Juridisch.
Geijsen, K. (2023). Investigative interviewing: Het verhoor 2.0 voor de politie. De Website voor de Politie.
Geijsen, K., Mergaerts, L., Otgaar, H., & De Ruiter, C. (2023). Verhoor 2.0: Basisboek investigative interviewing. Gompel&Svacina.
Geijsen, K., & Kieft, M. (2022). Autonomie en zingeving in het politiewerk: Ervaringen van professionals in een ontkoppelde organisatie. Het Tijdschrift voor de Politie, 84(1), 43-45.
Geijsen, K. (2021). Politie en management anno 2021: Over de arrestatie van de politieorganisatie. In G. Meershoek, J. Nap, & L. van Spijk, In naam der wat? Reflecties op politie en politiewerk (pp. 145-162). Politieacademie.
Bockstaele, M., Declercq, F., Kranendonk, R., Geijsen, K., & Van Dijk, A. (2021). Verhoor van kwetsbare volwassenen (Cahier Politiestudies, 58 ed., Vol. 1). Gompel & Svacina.
Geijsen, K., De Ruiter, C., & Otgaar, H. (2021). Van politieverhoorders naar politie-interviewers: Selectie en toekomstige functieprofielen. Cahier Politiestudies, 58(1), 35-58.
Geijsen, K. (2019). Over de inrichting van cellencomplexen, verdachten en het politieverhoor. In-Mind, 3.
Geijsen, K. (2019). Kwetsbare verdachten tijdens het politieverhoor. Ars Aequi, 5, 416-419.
Otgaar, H., De Ruiter, C., La Rooy, D., Horselenberg, R., Herskowitz, I., & Geijsen, K. (2019). The burden of proof of the Dutch police: Why the Scenario Model continues to deliver low quality child interviews. Applied Cognitive Psychology, 1-3. DOI:10.1002/acp.3541.
Source
Geijsen, K. (2018). Persons at risk during interrogations in police custody: Different perspectives on vulnerable suspects (Doctoral dissertation). DOI: 10.26482/dis.20181101kg.
Geijsen, K., Kop, N., & De Ruiter, C. (2018). Overnachten in een politiecel: Een onderzoek naar het psychisch welzijn en slaapproblemen van verdachten. Tijdschrift voor Criminologie, 60(3), 312-326. DOI: 10.5553/TvC/0165182X2018060003003.
Geijsen, K., Kop, N., & De Ruiter, C. (2018). Screening for intellectual disability in Dutch police suspects. Journal of Investigative Psychology and Offender Profiling. Published online 14 April 2018. DOI: 10.1002/jip.1502.
Geijsen, K., De Ruiter, C., & Kop, N. (2018). Identifying psychological vulnerabilities: Studies on police suspects mental health issues and police officers’ views. Cogent Psychology, 5(1), 1462133. Published online 19 April 2018. DOI: 10.1080/23311908.2018.1462133.
Geijsen, K., Vanbelle, S., Kop, N., & De Ruiter, C. (2018). The interrogation of vulnerable suspects in the Netherlands: An exploratory study. Investigative Interviewing: Research and Practice, 9(1), 34-51.
Geijsen, K., & De Ruiter, C. (2017). Het Nederlandse politieverhoor van verdachten anno 2017. Strafblad, 79(2), 157-162.
Boon, R., Odinot, G., Horselenberg, R., & Geijsen, K. (2016). Van verhoor naar forensisch interview: Naar een effectieve interviewstandaard voor de politie. Het Tijdschrift voor de Politie, 78(4), 20-25.