Physical aggression towards other people presents a significant challenge to carers of adults with LD. Further research is needed to identify aetiological factors with a view to finding effective interventions to reduce, and improve management of, this behaviour.

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Purpose. This paper is concerned with case linkage, a form of behavioural analysis used to identify crimes committed by the same offender, through their behavioural similarity. Whilst widely practised, relatively little has been published on the process of linking crimes. This review aims to draw together diverse published studies by outlining what the process involves, critically examining its underlying psychological assumptions and reviewing the empirical research conducted on its viability. Methods. Literature searches were completed on the electronic databases, PsychInfo and Criminal Justice Abstracts, to identify theoretical and empirical papers relating to the practice of linking crimes and to behavioural consistency. Results. The available research gives some support to the assumption of consistency in criminals' behaviour. It also suggests that in comparison with intra‐individual variation in behaviour, inter‐individual variation is sufficient for the offences of one offender to be distinguished from those of other offenders. Thus, the two fundamental assumptions underlying the practice of linking crimes, behavioural consistency and inter‐individual variation, are supported. However, not all behaviours show the same degree of consistency, with behaviours that are less situation‐dependent, and hence more offender‐initiated, showing greater consistency. Conclusions. The limited research regarding linking offenders' crimes appears promising at both a theoretical and an empirical level. There is a clear need, however, for replication studies and for research with various types of crime.

Purpose. This study considers the use of the Psychological Inventory of Criminal Thinking Styles (PICTS) within an English prison population. Method. The reliability and validity of the PICTS scales were investigated, and scores compared with data from an American prison population. Results. The results suggested that the PICTS was functioning in a similar way in both populations, although the English population's scores were higher. The calculation of test‐retest change scores over the duration of 6‐12‐month sentences allowed the sensitivity of PICTS scales to change over time to be analysed, an aspect of the PICTS functioning that had not previously been examined. This analysis over time suggested that evenwhen the effect of age was controlled for, changes were occurring over the duration of the sentence. Conclusion. The potential of the PICTS as a measure of change, aswell as assessment, is discussed.

Purpose. This paper considers the criminogenic needs of women offenders, raising the question of whether there may be women‐specific criminogenic needs. Arguments. The risk‐needs model of offending has become increasingly influential in both research and practice. Simply, the risk–needs model holds that some aspects of an individual's functioning are risk factors for offending. The distinction can be drawn between static and dynamic risk factors: the former are historical, the latter reflect current functioning and are amenable to change. These dynamic attributes linked to offending – such as financial status, emotional problems, and substance use – are referred to as criminogenic needs. Needs assessment instruments, such as the Level of Service Inventory‐Revised (LSI‐R; Andrews & Bonta, 1995) have been developed to assess criminogenic need and predict risk of offending. Much of the research informing the risk–needs model has been carried out with male offenders, leading to questions about the criminogenic needs of women offenders and whether there may be women‐specific criminogenic needs. Conclusion. An overview of typical criminogenic needs, as assessed by the LSI‐R, suggests that there are probably common needs for male and female offenders. A common need does not imply that aetiology or level of importance of that need is the same for men and women, while some events, such as physical and sexual abuse, are arguably criminogenic needs for women. The implications for practice and research of understanding more about women‐specific criminogenic needs are considered.