In the present study, the role of genetic and cultural transmission in intergenerational continuity of rule-breaking behavior (RBB) was investigated. Based on the resemblance within 3,982 Dutch twin pairs, aged 13 to 17 years, the relative importance of genetic (G), shared environmental (C), and unique environmental (E) influences on RBB was estimated. Cultural transmission, the process of passing on knowledge, norms and values, can lead to similarities within families, and forms part of the shared environment of children growing up in the same family. The authors found no evidence for shared environmental influences, and consequently no indication of a role for cultural transmission. Genetic influences explained 60 percent of the variance in rule-breaking behavior at age 13 to 17, implying that intergenerational continuity at this age is mainly driven by genetic transmission.

In this study, we examined what police interviewers know about factors that affect the reliability of eyewitness testimony. We asked 143 specialist investigative interviewers from the Dutch police to complete a questionnaire about eyewitness memory. The results indicate that the police interviewers have limited knowledge of episodic memory and accompanying interviewing issues. In addition, we analyzed the interview manual from the Dutch Police Academy on coverage of the topics in our questionnaire. The poor level of knowledge of the police interviewers was correlated with lack of knowledge in the manual. Results are discussed in relation to education in police interviewing in the Netherlands.

The detention experiences of male criminal foreign national prisoners without legal residence receive little attention in penological literature. A qualitative study amongst 30 prisoners with and 16 prisoners without legal residence in the penitentiary institution Tilburg shows that contacts with the social network and the preparation of the reintegration in society are (more) complicated for foreign national prisoners without legal residence. Besides, communication with the staff is more difficult for this group. These factors have negative impact on their detention experiences. The results show that both deprivation and importation theory apply to foreign national prisoners without legal residence. However, importation aspects – especially the lack of legal residence – may substantially and systematically increase the deprivation and result in additional exclusion and isolation mechanisms for this particular group.