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Impressum | Datenschutz

IFPM Institute for Forensic Psychology and Forensic Medicine

Objective and tasks

Our goal is the interdisciplinary investigation of current forensic issues. We combine basic and applied forensic research in order to improve the integration of psychological and medical theories and methods in different areas of law in collaboration with different judicial and executive bodies. We act as a bridge between the forensic (psychological) sciences and the legal system by participating directly and indirectly as researchers and experts in different areas of law.

Legal psychology

Legal psychology has been used since the 1980s as a generic term for Forensic Psychology (the application of psychology in judicial proceedings) and Criminal Psychology (the psychology of the origin and detection of crime, crime prevention and treatment of delinquents).

The IFPM focuses on both basic and application-oriented research in different areas of legal psychology (e.g. statementpsychology, criminal psychology, family law). It cooperates with national (internal and external) research institutes in theareas of legal psychology, criminology or forensic psychiatry. The application-oriented research questions are developed in close cooperation with the Hafencity Institute for Legal Psychology, Legal Medicine and Clinical Expertise (HIGFW).

Formal medicine

The original definition of the field’s tasks from the founding year of the German Society for Forensic Medicine reads: “Forensic medicine teaches the research and utilization of medical and scientific facts for the purposes of the administration of justice and explains in this context all matters relating to the professional activity of the doctor which may give rise to legal questions.”

Forensic medicine is now known as “forensic medicine”. Forensic medicine’s tasks are not limited to what is best known to the public in recent times, namely the treatment of unexplained and non-natural deaths. Rather, it covers a very widerange of activities for the judiciary, clinics and the public health system. Forensic medicine is practised predominantly in university institutes.

Forensic medicine is a typical cross-sectional subject, in which the following tasks are carried out: autopsies and the associated on-site medical examinations (at the scene of the incident or at the scene of the crime), diagnosis and assessment of legally relevant bodily injuries in the living (concerning e.g. child abuse, rape), public health, toxicological examinations, haemogenetics/trace analysis, blood alcohol tests. In addition to the reconstruction of the event, theassessment of the influence of alcohol, drugs and medication is also included.

Quite often, reports are drawn up on the basis of the available documents. Close cooperation partners and clients are, for example, the police and justice.

Working groups
Professors
 

Prof. Dr. Silvia Gubi-Kelm
Chair of Legal Psychology
Priorities:

  • Testimonial psychological assessment
  • Suggestion / Suggestibility
  • Confessing Conduct of Suspects
 

Prof. Dr. Dahlnym Yoon
Chair of Legal Psychology
Priorities:

  • Resource-oriented criminal assessment and treatment
  • Classical and alternative models of psychopathic personality traits
 

Prof. Dr. Judith A. Iffand
Junior Professorship for Legal Psychology
Priorities:

    • Evaluation and treatment of offenders
    • Risk assessments in family law
    • Sexology
    • Testimonial psychological assessment


Prof. Dr. Klaus Püschel
Chair of Forensic Medicine
Priorities:

  • Pathophysiology and pathomorphology of death by suffocation
  • Drug death
  • Biomechanics
  • Forensic medicine
  • Forensic Anthropology
  • Alcohol research
  • Medical editor of the journal BLUTALKOHOL
  • Member of the National Academy of Sciences LEOPOLDINA.

Scientific staff
 

Dr. Ronja Müller
Research Assistant
Priorities:

  • Cognitive processing and plasticity
  • Adaptation processes in the area of perception and processing
  • Emotional Recognition and Psychopathy
  • Assassin detection in the pre-attack phase
 

Sven Ritter, M.Sc.
Lecturer for Family Law Psychological Issues
Priorities:

  • Psychological Test Diagnostics in Family Law Psychology
  • Determinants of the best interests of the child in legal proceedings
  • Evaluation and further development of interaction diagnostics
  • Intervention offers for highly contentious parental constellations
 

Lea Victoria Wunsch, B.Sc.
Research assistant (working student)
Project support for Prof. Dr. Yoon

Theres Volz, M.Sc.
Research Assistant
Priorities:

  • Testimonial psychological assessment

 

Current research projects

Facial recognition processes in the context of line-ups

Prof. Dr. Silvia Gubi-Kelm | Prof. Dr. Tilo Strobach | Dr. Ronja Müller

The successful identification of faces is not only important and necessary in everyday social interactions. In policejuxtaposition, the identification of faces can be the decisive factor in solving a crime. However, juxtapositions, as seen in movies, are now rarely performed. The method of so-called photographic lineup has become established: Instead of real people, the witness is presented with pictures of different people (including the accused person's picture) and all of them have to look similar. The witness is then asked to identify the perpetrator from the pictures. As the process of facial identification is still not fully understood, it is also unclear how factors such as the selection and order of the comparison pictures affect the identification performance of the witnesses. The project "Face Recognition Processes in the Context of Line-ups" addresses this question. It investigates the assessment and perception of faces in the context of Elective image template from various laboratory-based studies.

 

Influences on Criteria Based Content Analysis (CBCA)

Dr. Verena Oberlader (University of Bonn) | Dr. Alexander F. Schmidt (University of Mainz)
Prof. Dr. Silvia Gubi-Kelm

In a statement-against-declaration constellation, it is the task of the public prosecutor's office or the court to assess whether the statements of alleged victim witnesses are experience-based. If the public prosecutor's office or the courtlacks the necessary expertise to make such an assessment, psychological expert reports are commissioned. In these reports, the character-based content analysis (CBCA) is used to differentiate between true and fictional statements. There are numerous studies on the reliability of feature-based content analysis and its effectiveness is generally considered to be proven. Nevertheless, feature-based content analysis is an unstandardised method based on subjective assessments of individual cases. Against this background, it is assumed that the existence of case-specific prior information could have an influence on the application of feature-based content analysis. The research project focuses onthis question.


Classical and alternative models and measurement methods for psychopathy

Prof. Dr. Dahlnym Yoon | Jonas Krüppel M.Sc. (Distance University in Hagen)
Prof. Dr. Andreas Mokros (Distance University of Hagen)

In the field of diagnosis of personality disorders, there has been a recent development from categorial to dimensional approaches. A dimensional approach allows the recording of personality traits as continuous variables and an empirically based description of personality structure. In the field of research on psychopathic personality traits several conceptualizations exist, some of which define psychopathy as extreme-deviant manifestations of functional traits, e.g. meanness/ antagonism, disinhibition and boldness/fearless dominance. The question of the latent structure of the psychopathy construct has not been conclusively clarified, and methodological differences in the assessment of psychopathy also pose challenges in answering these questions.

The project aims to investigate the latent structure and relevance of certain characteristics in the nomological network of psychopathy in the general population and the criminal population. Furthermore, the aim is to enable the most reliable and time-efficient measurement of psychopathy.

Innovative methods in the evaluation of offender treatment

Prof. Dr. Dahlnym Yoon | Stefanie Rücknagel M.Sc. (Criminological Service Berlin)

The effectiveness and testing methods of offender treatment are still controversial. Meta-analytical findings tend to indicate small effect sizes, although the individual studies are very heterogeneous. Group statistical comparisons of treated and untreated offenders, recidivists and non-recidivists, or before and after treatment only provide generalized statements without being able to examine more precise therapeutic effects. As part of various projects, the researchers at the ILFP are working with their cooperation partners to investigate these questions. The following objectives are being pursued:

  • Application of innovative methods for testing treatment effects, for example individualized analyses of change based on the concept of Clinically Significant Changes.
  • Standardized recording of treatment-relevant factors: Application of the integrative prognosis method as well as exploration of alternative testing methods of the validity of clinical prognosis according to the Structured Professional Judgment method.
  • Expansion of the effectiveness criteria beyond recidivism, for example based on the concept of Offense Analogue vs. Offense Replacemence Behavior.


“Criminal prognostic risk assessments in family law”

Prof. Dr. Judith A. Iffland | Dr. Alexander F. Schmidt (University of Mainz) | Dr. Diana Gossmann
Natalie Oesterlein

In contact and custody proceedings before the family court, risk assessments on the likelihood of sexual boundary violations have recently been commissioned more frequently. Male caregivers such as fathers or stepfathers are to be assessed with regard to a possible paedophile disorder and the question of a possible risk to the child's welfare due to sexual abuse is to be answered. In many cases, the person concerned has made a criminal appearance by consuming images of abuse (so-called “child pornography”) but not by committing a hands-on sexual offense. This makes a criminal prognostic risk assessment very difficult. The project aims to investigate the question of how an evidence-based risk assessment can be carried out in such constellations, how the endangerment of children by male caregivers with a paraphilic disposition can be preventively recognized and how a premature ban on contact due to stigmatizing attitudes can be prevented.

Selected publications

2024

  • Gubi-Kelm, S., May, L., Schmitt, S., Bitzigeio, C., Rick, R., & Püschel, K. (2024). Interdisziplinäre Betrachtung eines Mordes, den es nicht gab – der Fall Manfred G. Archiv für Kriminologie, 253 (1/2), 30-75.
  • Gubi-Kelm, S., & Greuel. L. (2024). Rituelle sexuelle Gewalt – Zur aktuellen Kontroverse über ein polarisierendes Narrativ. Report Psychologie, 2, 18-26.
  • Iffland, J. A., Volz, T., & Gubi-Kelm, S. (2024). Proposing immersive virtual reality scenarios for validating verbal content analysis methods in adult samples. Frontiers in Psychology, 15:1352091.
  • Yoon, D., Hofmann, M., Krüppel, J., & Mokros, A. (in press). Explicit Measures for Emotional Congruence with Children are Related to Sexual Interests in a Male Community Sample, but not Implicit Measures. International Journal of Impotence Research

2023

  • Gubi-Kelm, S., May, L., Gundlach, T. E., Rick, R., & Püschel, K. (2023). Der Fall Rudolf R. – eine interdisziplinäre Analyse. Archiv für Kriminologie, 252 (3/4), 101-136.
  • Krüppel, J., Hollerbach, P., Yoon, D., & Mokros, A. (2023). Behandlung von Persönlichkeitsstörungen und Psychopathie. In J. Endres & S. Suhling (Eds.), Behandlung im Strafvollzug. Springer.

2022

  • Gallwitz*, S. & Gubi-Kelm*, S. (2022). Leitgedanken zu aktuellen Herausforderungen in der Aussagepsychologie. Praxis der Rechtspsychologie, 32 (2), 5-33. (* geteilte Erstautorenschaft).
  • Schneider, S., Yoon, D., Mokros, A., Schwarz, M. F., Baster, A., & Koehler, D. (2022). The Elemental Psychopathy Assessment (EPA): Factor structure and construct validity across three German samples. Psychological Assessment, 34(8), 717–730.
  • Volbert, R., Tamm, A., & Gubi-Kelm, S. (2022). Umsetzung einer kindgerechten Justiz im strafrechtlichen Verfahren. In Handreichung für Richter*innen – Arbeitshilfe zur Ausgestaltung einer kindgerechten Justiz im Familiengerichts- und Strafverfahren. Deutsches Kinderhilfswerk.
    Handreichung für Richter*innen Arbeitshilfe zur Ausgestaltung einer kindgerechten Justiz im Familiengerichts- und Strafverfahren PDF »

2021

  • Grotepaß, J., Hein, N., Gubi-Kelm, S. & Querengässer, J. (2021). Nachsorge unter erschwerten Vorzeichen – Erfahrungen forensischer Nachsorgeambulanzen mit Sexualstraftätern, die nach der Novelle der Verhältnismäßigkeitsregelung entlassen wurden. Praxis der Rechtspsychologie, 31 (2), 191-214.
  • Gubi-Kelm, S. (2021). Gedächtnispsychologie – Wissenschaftliche Erkenntnisse für das forensische Verfahren. In R. Deckers & G. Köhnken (Hrsg.), Die Erhebung und Bewertung von Zeugenaussagen im Strafprozess (4. Aufl., 93-117). Berliner Wissenschafts-Verlag.
  • Iffland, J. (2021). Pädosexuelle Delikte: Tätertypologie, Rückfallrisiko und Risk Assessment. In: Sexualstraftäter. Diagnostik, Begutachtung, Risk Assessment, Therapie. N. Saimeh, P. Briken, J. Müller (Hrsg.). Berlin: Medizinisch Wissenschaftliche Vertragsgesellschaft. Im Druck.
  • Krüppel, J., Yoon, D., Fieg, K., Sharma, P., & Mokros, A. (2021). On the relationship between right‐wing attitudes, conspiracy beliefs, and intergroup threat: Introducing an indirect measure for intergroup threat. Journal of Theoretical Social Psychology, 5(4), 354-365.
  • Yoon, D., Mokros, A., Rettenberger, M., Briken, P., & Brunner, F. (2021). Triarchic Psychopathy Measure: Convergent and discriminant validity in a correctional treatment setting. Personality Disorders: Theory, Research, and Treatment.
  • Yoon, D., Mokros, A., & Eher, R. (2021). Incremental validity of the Psychopathy Checklist-Revised above and beyond the diagnosis of antisocial personality disorder regarding recidivism in sexual offenders. Journal of Criminal Justice.

2020

  • Gubi-Kelm, S., Grolig, T., Strobel, B., Ohlig, S., & Schmidt, A. F. (2020). When do false accusations lead to false confessions? A potentially overlooked alternative ex-planation. Journal of Forensic Psychology: Research and Practice. Advance online publication.
  • Hare, R. D., Olver, M. E., Stockdale, K. C., Neumann, C. S., Mokros, A., Baskin-Sommers, A., Brand, E., Folino, J., Gacono, C., Gray, N. S., Kiehl, K., Knight, R., Leon-Mayer, E., Logan, M., Meloy, J. R., Roy, S., Salekin, R. T., Snowden, R. J., Thomson, N., . . . Yoon, D. (2020). The PCL–R and capital sentencing: A commentary on “Death is different” DeMatteo et al. (2020a). Psychology, Public Policy, and Law, 26(4), 519–522.
  • Rommel*, J., Yoon*, D., & Dahle, K. (2020). Wer bleibt unbehandelt? Eine Untersuchung von Straftätern, deren Bewerbung zur Aufnahme in die Sozialtherapeutische Anstalt Berlin-Tegel abgelehnt wurde. Monatsschrift für Kriminologie und Strafrechtsreform, 103(1), 1-14. (*Geteilte Erstautorenschaft)
  • Olver, M. E., Stockdale, K. C., Neumann, C. S., Hare, R. D., Mokros, A., Baskin-Sommers, A., Brand, E., Folino, J., Gacono, C., Gray, N. S., Kiehl, K., Knight, R., Leon-Mayer, E., Logan, M., Meloy, J. R., Roy, S., Salekin, R. T., Snowden, R., Thomson, N., . . . Yoon, D. (2020). Reliability and validity of the Psychopathy Checklist-Revised in the assessment of risk for institutional violence: A cautionary note on DeMatteo et al. (2020). Psychology, Public Policy, and Law, 26(4), 490–5

2019

  • Brunner*, F., Neumann*, I., Yoon, D., Rettenberger, M., & Briken, P. (2019). Determinants of Dropout from Correctional Offender Treatment. Frontiers in Psychiatry, section Forensic Psychiatry, 10, 142. (*Geteilte Erstautorenschaft)
  • Gubi-Kelm S., & Schmidt, A. F. (2019) Interrogator intonation and memory encoding performance. PLoS ONE 14(6): e0218331.
  • Iffland, J. (2019). Begutachtung am Institut für Sexualforschung. In: Perspektiven der Sexualforschung. P. Briken (Hrsg.). Gießen: Psychosozial-Verlag, S. 463-470.
  • Yoon, D., Mauzaite, A., & Mokros, A. (2019). Sexual Sadism Scale (SeSeS). In R. R. Milhausen, J. K. Sakaluk, T. D. Fisher, C. M. Davis, & W. L. Yarber, W. L. (Eds.). Handbook of Sexuality-Related Measures. New York: Routledge.
  • Yoon, D., Stück, E., & von Franqué, F. (2019). Die Ressourcenperspektive in der sexualforensischen Forschung und Therapie. In Briken, P. Perspektiven der Sexualforschung (pp. 443-462). Gießen: Psychosozial-Verlag.

2018

  • Gubi-Kelm, S., & Schmidt, A. F. (2018). The role of intonation for interrogative suggestibility. Applied Cognitive Psychology, 1, 1-12.
  • Iffland, J. (2018). Partnerschaften von Sexualstraftätern. In: EFPPP Jahrbuch 2018. P. Briken, J.L. Müller, F. Brunner, J. Schröder (Hrsg.). Berlin: Medizinisch Wissenschaftliche Verlagsgesellschaft, S. 58-68.
  • Yoon, D., Turner, D., Klein, V., Rettenberger, M., Eher, R. & Briken, P. (2018). Factors predicting desistance from reoffending - a validation study of the SAPROF in sexual offenders. International Journal of Offender Therapy and Comparative Criminology, 62(3), 697-716.
  • Stasch*, J., Yoon*, D., Sauter, J., Hausam, J., & Dahle, Klaus-Peter (2018) Prison climate and its role in reducing dynamic risk factors during offender treatment. International Journal of Offender Therapy and Comparative Criminology, 62(14), 4609–4621. (*Geteilte Erstautorenschaft)
  • Yoon, D., Krüppel, J., Mokros, A., & Zimmermann, J. (2018). Dimensionale Ansätze zur Diagnostik von Antisozialer Persönlichkeitsstörung und Psychopathie. Forensische Psychiatrie, Psychologie, Kriminologie, 12, 217-228.

2016

  • Brunner, F., Yoon, D., Rettenberger, M., & Briken, P. (2016). Kriminologische und kriminalprognostische Kerndaten von Insassen der Sozialtherapeutischen Anstalt Hamburg. Recht & Psychiatrie, 34(4), 221-227.
  • Iffland, J.A., Berner, W. & Briken, P. (2016). Partnerschaften von Sexualstraftätern – Eine systematische Literaturübersicht. Forensische Psychiatrie, Psychologie, Kriminologie, 10 (1), 56-63.

2015

  • Iffland, J.A., Berner, W., Dekker, A. & Briken, P. (2015). “What keeps them together? Insights in Sex Offender Couples using qualitative content analyses”. Journal of Sex and Marital Therapy, 42 (6), 534-551.

2014

  • Iffland, J.A., Berner. W. & Briken, P. (2014). Relationship Factors of Sex Offender Couples: A Pilot Study in an outpatient setting. Journal of Sex and Marital Therapy, 40(6), 529-540.
  • Yoon, D., Choi, K., Kang, T., & Choi, Y. (2014). Legal and clinical practice of sex offender treatment in Germany. In J. Yoon, Y. Choi, B. Ryu, D. Yoon, K. Choi, G. Choi, & T. Kang (Hrsg.), Treating Sex Offenders in Korea III: Strengthening aftercare of treatment completers in Korea (S. 127-187). Seoul: Korean Institute of Criminology.

2013

  • Yoon, D., Motekallemi, S., Rettenberger, M. & Briken, P. (2013). Ambulante Behandlung von Sexualstraftätern: Möglichkeiten und Unmöglichkeiten. Forensische Psychiatrie, Psychologie, Kriminologie, 7 (3), 177-182.
  • Yoon, D., Klein, V. & Briken, P. (2013). SAPROF - Structured Assessment of PROtective Factors for violence risk. In M. Rettenberger & F. von Franquè (Hrsg.), Handbuch kriminalprognostischer Verfahren (S. 301-308). Göttingen: Hogrefe.
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