Jean-Pierre Guay

• Ph.D.
• Professor (Full) at Université de Montréal

The victim-choice polymorphia of 178 sexual aggressors divided into six subtypes, incest offenders, pseudoincest offenders, sexual aggressors of familiar children, sexual aggressors of unfamiliar children, sexual aggressors of familiar women, and sexual aggressors of unfamiliar women, was compared. Results showed that sex offenders remained stable...

The taxonomic status of psychopathy is controversial. Whereas some studies have found evidence that psychopathy, at least its antisocial component, is distributed as a taxon, others have found that both major components of psychopathy-callousness/unemotionality and impulsivity/antisocial behavior-appear to distribute as dimensions and show little e...

This study assessed the predictive validity of the Static-99R among 172 men convicted of online sexual solicitation of minors in Canada – 93 from clinical settings and 79 from police investigations. It examined recidivism rates for sexual (any, contact, and child luring) and nonsexual violent offenses, comparing men with and without intent to engag...

Approximately one in seven homicides globally is committed by a partner within an intimate relationship. While criminology research on intimate partner homicide (IPH) perpetrators is extensive, their interactions with law enforcement remain under-explored. This study examines the criminal trajectories of IPH perpetrators to ascertain whether they e...

Intimate partner homicide (IPH) can be viewed as the ultimate result of a potential spectrum of violence that can occur between intimate or former partners. The goal of this study is to identify the criminal career and contextual indicators that precede IPH. This study utilized a database encompassing all criminal events documented by the police in...

Il s'agit des stratistiques à jour du programme Ça suffit (casuffit.info) du Centre d'intervention en délinquance sexuelle (Québec, Canada) qui s'adresse aux personnes ayant des intérêts sexuels envers les personnes mineures. These are up-to-date statistics from the Ça suffit program (casuffit.info) from the Intervention Center in Sexual Delinquen...

The current study investigates the criminal career of individuals involved in intimate partner sexual violence (IPSV). Specifically, the goal is to determine whether men who engage in IPSV can be distinguished from those who engage in intimate partner non sexual violence (IPNSV) only and whether criminal trajectories in the resulting subgroup are h...

In recent years, a lot of interest has been devoted to the study of sexual coercion. Although the definition varies across studies, sexual coercion is generally defined as the employment of tactics to obtain sexual activity against freely given consent. Several measures of sexual coercion exist, however those measures present some methodological li...

Since 2017, complaints of sexual violence have increased in France. At the same time, the management of sexual offenders has been at the center of international public health policies. The prevalence of mental disorders among sexual offenders is an essential field of research. There are some published studies on the prevalence of psychiatric disord...

Alors que les violences sexuelles constituent un problème social majeur, la perception erronée des intentions sexuelles est un facteur de risque important. Toutefois, le manque de validité écologique des opérationnalisations disponibles pour étudier la perception des intentions sexuelles apparait comme une limite importante. L’objectif de cette étu...

A R T I C L E I N F O Keywords: Intimate partner homicide Conjunctive analysis Intimate partner violence Risk factors Lethal outcome A B S T R A C T This research aims to explore the factors associated with a lethal outcome in cases of intimate partner violence. We used four hypotheses-offender characteristics, victim vulnerabilities, environmental...

CHANGES training is currently being implemented in France as part of an initiative with two probation departments, initiated by the Ecole Nationale d’Administration Pénitentiaire (ENAP). This is the first attempt to provide officers with an evidence-based cognitive-behavioral strategy for supervising justice-involved individuals on a face-to-face b...

Introduction Recent longitudinal studies point towards the existence of a positive relationship between cannabis use and violence in people with severe mental disorders. However, the existence of a dose-response relationship between the frequency and/or the severity of cannabis use and violence has seldom been investigated. Objectives This study a...

Introduction Research has identified simulation-based training with chatbots and virtual avatars as an effective educational strategy in some domains, such as medicine and mental health disciplines. Several studies on interactive systems have also suggested that user experience is decisive for adoption. As interest increases, it becomes important t...

Dans cette FAQ, nous apportons des réponses aux questions que nous avons reçues concernant le CPORT et le CASIC. Les questions sont regroupées par thèmes. Les questions à plusieurs parties ont été séparées, celles qui comportaient des éléments d'identification ont été rendues anonymes et nous avons parfois édité le texte pour en faciliter la lectur...

Guide de cotation pour l’Instrument d’évaluation du risque de récidive des auteurs d’infractions en matière de pornographie juvénile (Child Pornography Offender Risk Tool − CPORT) et des facteurs associés au dévoilement de l’intérêt sexuel envers les enfants (Correlates ofAdmission of Sexual Interest in Children − CASIC) - Version 2, traduction fra...

La coercition sexuelle décrit l’utilisation de toute stratégie pour engager quelqu’un dans des comportements sexuels malgré l’expression d’un refus explicite ou l’absence de consentement. Bien que les femmes et les minorités sexuelles et de genre puissent en être auteurs, la coercition sexuelle est majoritairement perpétrée par des hommes hétérosex...

This study examines the characteristics of youths convicted of sexual crimes (YSC) and youths convicted of non-sexual crimes (YNSC) to create an inclusive typology of clinical characteristics associated with sexual and general delinquency. The sample consisted of 391 justice-involved male youths aged 14–20. Participants completed either the Multidi...

Introduction: Recent longitudinal studies point toward the existence of a positive relationship between cannabis use and violence in people with severe mental disorders (SMD). However, the existence of a dose-response relationship between the frequency/severity of cannabis use and violence has seldom been investigated. Therefore, this study aims to...

BRACELETS ANTI-RAPPROCHEMENT Entre prédiction et décision : une approche basée sur les données probantes au sujet de l'application du bracelet anti-rapprochement en matière de violence conjugale en contexte québécois

La question de la violence conjugale est très préoccupante. Récemment, le Québec a été frappé par une vague de cas de violence conjugale grave menant à des féminicides. Dans les dernières années, certains pays ont adopté des systèmes de bracelets anti-rapprochements (BAR) comme moyen de prévention de violence conjugale incluant les homicides conjug...

This study explores the use of clinical override with the Youth Level of Service/Case Management Inventory (YLS/CMI), including implications for predictive validity as well as the factors associated with this practice. The sample included 597 justice-involved youth from a metropolitan region in Québec, Canada. The clinical override was used in 32.5...

Purpose: Paraphilia can be defined as a condition in which the sexual excitement rely on fantasizing and/or participating in unusual sexual behaviour. The last decades have been rich with new studies investigating the prevalence of paraphilic desires and behaviours among the general population as well as clarifying the boundary between paraphilic a...

L’administration pénitentiaire n’a pas pour unique mission la garde des personnes détenues. Elle doit aussi prévenir la récidive et contribuer à la réinsertion des personnes qui lui sont confiées par l’autorité judiciaire. En France, l’univers carcéral a été marqué par de profonds changements au cours des dernières décennies, notamment dans sa rela...

Introduction The Level of Service/Case Management Inventory (LS/CMI) is one of the best-known recidivism risk instruments. In France, this scale is rarely used because no study had yet been carried out to confirm its psychometric properties on samples of French offenders. The aim of this study was to test the psychometric properties of the LS/CMI o...

Objectives This article provides an overview of the approaches and instruments used to assess the risk of other-directed violence, with particular focus on risk formulation. Issues pertaining to the development and implementation of these instruments are briefly reviewed. Method A critical analysis of the literature pertaining to the methods and cu...

Objectifs Cet article propose un survol des méthodes et outils d’évaluation du risque de violence hétérodirigée et aborde la question de la formulation du risque de violence. Il se termine par un survol des différents enjeux relatifs au développement et à l’implantation de ces outils. Méthode Une analyse critique de la littérature relative aux d...

Abstract Paraphilia is defined as a condition in which the sexual excitement rely on fantasizing and/or participating in unusual sexual behaviour. There are several problems with the paraphilic categories as defined by the DSM, ranging from a poor reliability and validity, to the use of arbitrary cut-offs between what constitutes normophilic and a...

Introduction The Dual control model proposes that both excitatory and inhibitory processes are responsible for the human sexual response. Aim To validate the French-Canadian translation of the Sexual Inhibition and Excitation Scales-Short Form (SIS/SES-SF) by exploring its factor structure and by investigating its capacity to retrospectively predi...

Purpose: It has been hypothesized that paraphilic coercive disorder (PCD) constitutes a distinct preference for coercion that can be discriminated from a preference for sadism. Despite the repeated rejections of PCD as an acceptable diagnosis, it continues to be used. In 2013 Knight and colleagues reviewed the evidence that had been proffered to su...

The quality of risk assessment instruments has improved greatly during the last 40 years. While assessing protective factors has become common practice, with some instruments now devoted entirely to such assessments, little is known about the effect of risk and protective factors on recidivism. The present study investigates the effects (promotive...

Sexual sadism has been included in the Diagnostic and Statistical Manual of Mental Disorders (DSM) since the mid‐20th century. The DSM‐5 committee distinguished between sadistic behaviors on consenting partners and nonconsenting persons. The lack of consensus on the diagnostic criteria for sexual sadism is in part responsible for the poor inter‐rat...

Denault, V., Plusquellec, P., Jupe, L. M., St-Yves, M., Dunbar, N. E., Hartwig, M., … van Koppen, P. J. (2020). L’analyse de la communication non verbale: Les dangers de la pseudoscience en contextes de sécurité et de justice [The analysis of nonverbal communication: The dangers of pseudoscience in security and justice contexts]. Revue internationa...

For security and justice professionals (e.g., police officers, lawyers, judges), the thousands of peer-reviewed articles on nonverbal communication represent important sources of knowledge. However, despite the scope of the scientific work carried out on this subject, professionals can turn to programs, methods, and approaches that fail to reflect...

Para los profesionales de la seguridad y la justicia (policías, abogados, jueces), los miles de artículos revisados por pares sobre comunicación no verbal representan fuentes importantes de conocimiento. Sin embargo, a pesar del alcance del trabajo científico realizado sobre este tema, los profesionales pueden recurrir a programas, métodos y enfoqu...

À la suite de la vague d’attentats et des actes terroristes ayant frappé le territoire français, la question de la « déradicalisation » s’est imposée dans le paysage politique et médiatique. Les acteurs et expériences se sont multipliés, sans que la plupart puissent réellement prétendre inscrire leurs actions au regard des connaissances cliniques e...

It has been hypothesized that paraphilic coercive disorder (PC+) constitutes a distinct preference for coercive sexual intercourse that can be discriminated from a preference for sadism (Thornton, 2010). Recent data have indicated that sadism is an endpoint on an Agonistic Continuum that range from noncoercive sexual fantasies and behaviours, throu...

Sadism was initially described as the experience of sexual pleasure produced by acts of cruelty and bodily punishment. Sadism was conceptualized as if sadists were fundamentally different from nonsadists. Recent studies have suggested that sadism is distributed as a dimension rather than as a category. The aim of the current study was to assess the...

Cette étude porte sur la validité prédictive du Suicide Probability Scale ( SPS ; 1988) auprès d’une population considérée à haut risque, soit des hommes adultes séjournant dans une unité psychiatrique en milieu carcéral. Dans le cadre d’une mesure de prévention du suicide mise en place au Centre Régional de Santé Mentale (CRSM), un des cinq centre...

While sexual misperception does not irrevocably lead to sexual aggression, it remains a significant risk factor. The present study investigated the effects of rape-supportive attitudes, alcohol, and sexual arousal on sexual perception. We used a 2 × 2 between-participants factorial design to randomly assign 135 men from the general population to a...

This book provides the first systematic overview of the theoretical, empirical, clinical, and police issues related to sexual murderers and murder. Bringing together leading researchers, theoreticians, and practitioners from across eight different countries, this is a truly international collaboration and an essential reference text for students, r...

Objectives: Based on the developmental criminology perspective, this study examines the association between the history of behavior problems in childhood and adolescence and the use of sexually coercive behaviors by women (seduction, manipulation, intoxication and physical force). In addition, this study examines the association between the use of...

Based on the developmental criminology perspective, this study examines the association between the history of behaviour problems in childhood and adolescence and the use of sexually coercive behaviours by women. Sexual coercion refers to the use of strategies, which can be sometimes subtle, to have sexual contact without the consent of a partner (...

Severe sexual sadism is a disorder of sexualpreferences that focuses on humiliation and domination of thevictim, sometimes causing grievous injury or death. Becauseoffenders with high levels of sadism represent a risk to bothreoffend and cause considerable harm should they reoffend, adiagnosis of sexual sadism has serious implications. Theactualdia...

Introduction: Although an increasing body of literature focuses on sexual coercion committed by women in the general population, very few explanatory models have been put forward to explain the use of coercive strategies by women. Objective: The main objective of this study is to test, using a wider and more culturally diverse sample, the first exp...

Introduction: Although an increasing body of literature focuses on sexual coercion committed by women in the general population, very few explanatory models have been put forward to explain the use of coercive strategies by women. Objective: The main objective of this study is to test, using a wider and more culturally diverse sample, the first exp...

Risk assessment practices have evolved considerably over the past three decades. Structured assessments of recidivism risk allow for the proper identification of criminogenic needs, which in turn, allow decision makers to make informed recommendations regarding criminal justice interventions and measures. Although actuarial assessments are common p...

Sexual sadism can be described as the experience of sexual pleasure produced by acts of cruelty and bodily punishment (Krafft-Ebing, 1886). Sadists are usually described as a discrete class of people that commit serious crimes and present a high risk of recidivism. Although various explanations of the etiology of sexual sadism have been proposed, v...

The limited set of studies available on facial affect recognition in psychopathic individuals not only differ in their findings but also reveal that the stimuli used to portray emotions have little ecological validity. The present study looks at the relationship between the degree of psychopathic traits and emotion recognition in a sample of underg...

Inmates and individuals suffering from a mental disorder have suicide rates that are significantly higher than that of the general population. To monitor the suicidality of these individuals, a number of scales such as the Suicide Probability Scale (SPS, Cull & Gill, 1988) have been developed and are widely used in psychiatric institutions and corr...

Clinicians are often left with the difficult task of assessing and managing the risk of violent behaviors in individuals having command hallucinations, which may result in substantial rates of false positive or false negative. Moreover, findings on the association between command hallucinations and suicidal behaviors are limited. In an attempt to b...

Inmates and individuals suffering from a mental disorder have suicide rates that are significantly higher than that of the general population. To monitor the suicidality of these individuals, a number of scales such as the Suicide Probability Scale (SPS, Cull & Gill, 1988) have been developed and are widely used in psychiatric institutions and corr...

Les méthodes d’évaluation du risque et des besoins des personnes contrevenantes ont grandement évolué au cours des 40 dernières années. Elles sont passées d’une évaluation impressionniste basée sur l’expérience clinique à une procédure systématique basée sur la recherche scientifique. Ce n’est toutefois que très récemment que les professionnels ont...

La présence accrue de jeunes faisant partie de groupes ethnoculturels minoritaires dans les institutions pour jeunes contrevenants au Québec est une problématique complexe et préoccupante. Cette étude explore le rôle de l’identité ethnique et du fait de faire partie d’un groupe de minorités racisées dans l’association autorévélée à un gang de rue e...

Recent studies concerned with latent structure suggest that sexual sadism represents a dimensional construct rather than a categorical entity. The goal of the present study was to investigate the latent structure of sadism with taxometric procedures on a sample of 474 sexual offenders. Taxometric analyses yielded unambiguously dimensional results.

Sexual sadism can be described as the experience of sexual pleasure produced by acts of cruelty and bodily punishment (Krafft-Ebing, 1886). Sadists are usually described as a discrete class of people that commit serious crimes and present a high risk of recidivism. Depending on the study, between 5% and 50% of sexual offenders are considered sadist...

The explanatory power of the interaction model between individual and contextual risk in order to explain delinquency, in comparison to the additive model, was explored. A research design of 235 offenders that completed self-reported questionnaires regarding antisocial traits and attitudes, criminal entourage, lifestyle, and delinquency was conduct...

Alors que le vieillissement entraînerait une diminution du risque de récidive chez les agresseurs sexuels, le niveau de risque mesuré par les instruments actuariels vi dans le sens inverse. La présente étude vise à évaluer l’impact de l’âge lors de la libération sur les taux de récidive sexuelle et la validité prédictive de six instruments (VRAG, S...

Les instruments d’évaluation du risque et des besoins de la famille LS (level of service) sont parmi les plus utilisés auprès des populations délinquantes dans le monde anglo-saxon. Jusqu’à présent, il n’existait pas de version validée en français du plus récent et plus complet de ces instruments, l’inventaire de niveau de service et de gestion des...

Media content is the result of a special filtering process. Concerning criminality, newsworthiness determines the selection of an event and the media attention. The violence of the crime, the victimization of more than one person, vulnerability, or a lack of relationship between the two protagonists are all indicators to evaluate how interesting a...

Des auteurs ont avancé que le Canada a su limiter les effets du durcissement pénal, notamment en adoptant une politique qui vise à « parler fort, mais agir doucement ». Certains ont cité l’exemple des peines minimales obligatoires (PMO) adoptées par le passé et qui servaient davantage à assurer à la population que le gouvernement sévissait à l’égar...

While aging is supposed to reduce the risk of recidivism among sex offenders, the risk level measured by an instrument should rather increase with age. This study aims to evaluate the impact of age at release on sexual recidivism rates and the predictive validity of six instruments (VRAG, SORAG, RRASOR, Static-99, Static -2002 and MnSOST-R) for 372...

L’exercice qui vise a definir les gangs de rue et a en identifier les membres est complexe. Plusieurs caracteristiques de ces groupes, notamment leur caractere elusif et clandestin, leur grande heterogeneite ainsi que leur caractere changeant nous ont pousses a en modifier notre conceptualisation. Cet article propose une definition generale et simp...

Bien que des photographies d’expressions emotionnelles faciales soient couramment utilisees pour etudier le traitement des informations affectives, les ensembles de stimuli actuels comportent differentes limites methodologiques. Dans la perspective d’ameliorer la validite ecologique des travaux sur la reconnaissance emotionnelle faciale (REF), l’et...

Sexual sadism can be described as the experience of sexual pleasure produced by acts of cruelty and bodily punishment (Krafft-Ebing, 1886). This can also be an innate desire to humiliate, hurt, hit, or even destroy others to experience sexual pleasure.

Although the prevention of recidivism in France is currently undergoing numerous transformations, the evaluation of the risk of recidivism of individuals under the justice system is a major issue. The absence of structure and standardization in current evaluation procedures raises doubts regarding their validity and underlines the necessity to dete...

The results of different studies on the best practices of the prevention of recidivism are clear: it is possible to reduce the risk of recidivism of offenders through efficient intervention. Structured risk assessment combined with practices based on risk, need and responsivity principals may reduce the risk of recidivism by up to 30%. These progra...

Résumé : Alors qu’en France la prévention de la récidive reste l’objet d’importants débats, les données de la littérature internationale sont claires : bien qu’aucune intervention ne permette d’assurer un risque zéro, il est possible de prévenir la récidive. Le modèle du risque, des besoins et de la réceptivité (R-B-R) constitue le modèle d’interve...

Éditorial - La prévention de la récidive en France : les principes d’une évaluation et d’une intervention efficaces Editorial - Preventing recidivism in France: Understanding the key principles of effective assessment and intervention

La prevalence des comportements a risque chez les jeunes contrevenants est importante et les couts sociaux qui y sont rattaches le sont tout autant, puisque la prise de risques peut entrainer des consequences dommageables, tant pour le jeune que pour son environnement et la societe en general. Plusieurs chercheurs affirment que les divers comportem...

Cognitive distortions are generally considered a key factor in the evaluation and treatment of sexual aggressors against children. The aim of this study was to examine the discriminant properties of the Abel and Becker Cognition Scale. The results of analyses of covariance, in a sample of 265 aggressors against children, do not support ABCS’s discr...

sadism can be described as the experience of sexual pleasure produced by acts of cruelty and bodily punishment (Krafft-Ebing, 1886). This can also be an innate desire to humiliate, hurt, hit, or even destroy others to experience sexual pleasure. Perceived as a disease, sadism has been conceptualized as if sadists were fundamentally different from n...

Background: Facial expressions of emotions represent classic stimuli for the study of social cognition. Developing virtual dynamic facial expressions of emotions, however, would open-up possibilities, both for fundamental and clinical research. For instance, virtual faces allow real-time Human–Computer retroactions between physiological measures an...

L’adhésion à la culture des gangs de rue est au nombre des explications de la grande propension au crime des contrevenants associés à ces groupes. Or, peu de personnes se sont penchées spécifiquement sur l’opérationnalisation du concept. Les objectifs de la présente étude sont de définir la culture de gang, de décrire ses composantes et de proposer...

Sexual sadism can be described as the experience of sexual pleasure produced by acts of cruelty and bodily punishment (Krafft-Ebing, 1886). Sadists are usually described as a discrete class of people, committing serious crimes and presenting a high risk of recidivism. Perceived as a disease which one can or cannot have, sadism was conceptualized an...

The aim of this study is to assess the discriminant validity of the Bumby’s Molest Scale (1996) using Rasch modeling. Results indicate the Bumby's Molest Scale tends to have a good fidelity, while they call into question its validity to measure cognitive distortions.