It has been proposed that when people perceive their treatment by criminal justice actors as more procedurally just, they will be more likely to comply with the law. Existing research mainly focused on the police or the judge. This longitudinal study examined how prisoners experienced their treatment by five different criminal justice actors using data from the Prison Project. The prisoners were most positive about the procedurally fair treatment by their lawyer and least positive about the treatment by the police. Additionally, the perceived treatment by the police was associated with the treatment by other actors at subsequent moments.

A well-established body of epidemiological research suggests that the prevalence of mental health problems (mental disorders, psychological distress, and substance use) in prisoner populations far exceeds that of non-incarcerated people in the surrounding community. Poor mental health in prisoners is associated with multiple adverse outcomes, including suicidal behaviour. In the past decade, novel data in Belgium and the Netherlands have been published on this topic, which have not been synthesized to date. The aim of the current systematic literature review was to provide an up-to-date overview of the mental health of prisoners in Belgium and the Netherlands. Based on 24 empirical studies conducted in 1997-2018, the authors conclude that people with mental health problems are overrepresented in Belgian and Dutch prisons, providing both a challenge and a public health opportunity to address the mental health care needs of a vulnerable and hard-to-engage population. Investing in the prevention and treatment of mental health problems not only benefits the prisoners concerned, but equally, society at large.

In the current criminological literature surprisingly little is known about the development of partnerships of detainees during and after detention. In particular, it is unknown to what extent existing differences in the relationship quality at the start of the detention period continue. Therefore, this study examined how the partnerships of detainees developed by using data from the Prison Project. This is a longitudinal study in which 747 detainees with a partner were interviewed at various moments during detention and six months after detention. The results show that bad partnerships at the beginning of detention remain in general bad or end during and/or after detention, while the average to good relationships remain the same.

This paper examines the relationship between imprisonment length and registered recidivism. The data come from a unique longitudinal and nationwide study of Dutch male prisoners, serving an average of 4.1 months of confinement (N=1,467). Ideally an experimental design would be appropriate to examine the influence of different sentence lengths on recidivism. In order to approximate such a design using observational data, we adopt a propensity score methodology to control for selection bias in the dose-response relationship. Using a six-month follow-up, we do not find significant differences in post-release recidivism between men who spent shorter or longer periods of time in confinement. We discuss the pros and cons of the methodology applied as well as potential implications of the findings.

Studies indicated that detainees are not always allocated to treatment programs based on official guidelines. Street-level bureaucracy theory suggests that this is because government employees do not always perform policies as prescribed. This study aimed to assess whether this also applies to the allocation of offenders to treatment in Dutch penitentiary institutions. This was studied among a group of 541 male prisoners who participated in the Recidivism Reduction program. The results showed that official policy guidelines were, in most cases, not leading when referring detainees to behavioral interventions. Instead, treatment referrals were influenced by a broad range of risk factors, as well as the length of an offender’s sentence.

Although good and stable housing is one of the requirements for successful reintegration, research on the relation between imprisonment and housing is scarce. This study gains insight into the housing situation of Dutch prisoners before and after their incarceration. Data are used from 886 male Prison Project participants, who were interviewed both during and six months after detention. Changes in housing appear to be common; 52 percent of the prisoners has a different housing situation after release (compared to before detention). Changes in housing remain frequent during the six months post-release. The importance of good aftercare in the transition from prison to stable housing is underlined by these results.

In this paper we examine to what extent a prison record negatively affects employment and accommodation outcomes after release from prison. Two randomized field experiments were conducted in which we had fictitious persons respond by email to online job openings and online advertisements for rented accommodations. In total, we responded to 384 job openings and to 231 advertisements for rented accommodations. Contrary to expectations, applicants with a prison record were not less likely to receive a positive response from employers than applicants without a prison record. Applicants with a non-western background, however, were less likely to receive a positive response. In the housing experiment, we did find a significant effect of having a prison record. Former prisoners were less likely to receive a positive response during their search for a place to live.

The current study examined the extent to which risk factors and treatment readiness were related to prison based treatment engagement (i.e. participation and completion), using a large sample of detainees who were a candidate for the Prevention of Recidivism program. Analyses showed that offenders who were treatment ready were over two times more likely to complete treatment programs, compared to offenders who were not. Risk factors did, for the most part, not correlate with treatment participation and completion. Outcomes underlined the importance of motivational aspects and showed the significance of enhancing treatment readiness amongst correctional resocialisation participants.

Prison policy in Belgium and the Netherlands is changing rapidly. While Belgium struggles with a persisting prison overcrowding, the Netherlands strongly cuts back on the prison system and is closing an increasing number of prisons. This introductory article to a special issue on detention starts with a short outline of recent changes in Dutch and Belgian prison policy, focusing on developments in detention capacity and prison population. Subsequently we present an overview of empirical criminological research in the Netherlands and Belgium, situated within the international literature, with a specific focus on studies regarding life in detention and effects of detention on prisoners' lives and on their social environment. Finally, we reflect upon existing detention research in both countries, e.g. in terms of gaps in research topics and methodology, and discuss some future developments.

Employment is believed to function as a ‘turning point’ for released offenders. Several theories state that employment can diminish recidivism, and offer different mechanisms to connect employment and crime, such as job stability and job quality. This study examines the effect of employment and employment characteristics on recidivism among Dutch ex-prisoners. Although recidivism risks are high among this group, longitudinal research on the effect of employment on recidivism risks is scarce. We based our analyses on longitudinal data of the Prison Project (n=842) and found that job stability reduces the risk of recidivism. The results indicate that not the guidance to a job, or a high-quality job, but the guidance to stable employment could help to reduce crime rates among this high-risk offender group.

Not only detainees, but also their spouses can experience negative consequences of imprisonment. Even though these negative consequences can be far-reaching, research in this area is scarce. This paper researches if detention causes female partners of male detainees in the Netherlands to experience negative reactions from family, friends and neighbours and if this causes changes in their social contacts. This study used longitudinal data from the Prison Project on 119 partners of detainees. Results show that many partners of detainees receive negative reactions from their network members. When partners of detainees experience negative reactions from their family in law, friends or neighbours, their contacts with those groups decrease. When partners of detainees experience negative reactions from their friends, their contact with their family increases.

Both in punishment theory and sentencing practices, the subjective sentence severity is an important yet neglected area of research. This paper aims to explain differences between inmates in their subjective severity of imprisonment and to contemplate these against the background of important sentencing goals and sentencing principles. Two models commonly used to explain adjustment to prison life were applied: the import and deprivation model. Data from the Prison Project, collected among Dutch inmates staying in pretrial detention, reveal that both import and deprivation characteristics are related to the subjective severity of imprisonment. No support is found for a moderation effect of personality.

This study examined the prevalence and predictors of male inmates’ mental health problems. Data were used from the Prison Project, a longitudinal study in which 824 prisoners were surveyed twice (three weeks and three months after arrival in prison). Compared with the general population, inmates reported significantly more psychological problems. Except for depressive symptoms, inmates’ mental health problems decreased over time. After controlling for prior mental health problems and a number of import factors, we found that those who shared a cell in the first weeks of their imprisonment and held more positive judgments regarding daytime activities and the relationships with staff, reported fewer psychological problems after three months. Those who were verbally abused by prison staff during their first weeks in prison reported more psychological problems after three months.

Knowledge about the effects of the architectural design of prisons is limited. This large-scale study examined the relation between prison design and inmates’ perceptions of their conditions of confinement. Data were used from the Prison Project, in which inmates held in all Dutch remand centers were interviewed (N=1,715). Multilevel analyses showed that the architectural design was related to inmates’ perspective: prisoners in panopticon designs experienced their autonomy, safety and relationships with staff less positive than prisoners in other designs. Specific characteristics of the prison design, like more gallery levels and a higher rate of double bunking, were also associated with less positive inmates’ perceptions.

This article reviews Dutch literature on collateral effects of incarceration on various life circumstances: psychological and physical health; social-economic status; well-being of partners of (ex-)prisoners; and well-being of children of (ex-)prisoners. Dutch research is predominantly descriptive and examines life circumstances of the prisoners and their family members during or just after imprisonment. Additionally, almost all Dutch studies, aiming to investigate the causal effects of incarceration on life circumstances, are characterised by methodological shortcomings, such as a lack of a longitudinal design or control groups. Therefore, it is still difficult to draw conclusions on the causal effects of imprisonment on life trajectory.