Criminal groups have traditionally been the focus of criminological research because of the collective dimension of many criminal activities or deviance. However, what constitutes a ‘criminal group’ or how specific criminal groups, like gangs, should be defined, remains open for discussion in the scientific literature. This introductory article highlights a number of recent developments illustrating the blurring boundaries between various criminal groups as defined by both insiders and outsiders. In addition, it suggests that the rise of social media and smartphones is changing the structure and dynamics of criminal groups. Future research should focus on how these (new) criminal groups originate, develop and function, but should also address the role of the group in criminal activities.

In this study the authors examined a criminal youth gang of 35 persons in the Netherlands, using social network analysis, to answer the following questions. To what extent is it possible by means of police records to estimate the size of the complete social network of this criminal youth gang? To what extent are members of this original group part of the core of the complete network? To what extent have members of the original group a central position in the complete network (key players) and are, as such, responsible for holding the complete network together? Information is derived from police records. Results show that the size of the total network of this criminal youth gang consists of 593 individuals with a core of around hundred persons. Seven persons were identified as key players, among which six persons belonged to the original group. The social network approach in this study provides police and justice important indications for a more tailored approach regarding individuals within criminal networks.

This article focuses on mobile organized criminal groups that travel through Europe and commit a broad range of property crimes. The study aims to explore the perspective of individual group members. Information was gathered from fifteen criminal investigations that were carried out in the Netherlands in recent years (2013-2016). The study shows that members of these crime groups view their criminal activities primarily as ‘work’. It is work that is characterized by conflicts and consensus. Conflicts often have to do with the stolen loot and reveal disagreement about leadership, rules and obedience. Rows and threats of violence go along with feelings of fear and distrust. At the same time gang members belong to an international deviant community with a shared common way of life and feelings of togetherness. Performing within this international community gives the possibility to attain social status and to express success and richness. These contractive emotions and symbolic meanings characterize the everyday life of gang members and motivates their daily practices.

This study contains a qualitative framing analysis of outlaw motor clubs in Dutch newspaper articles. These clubs appear in the news as a source for positive framing to counterbalance the prevailing organized crime frame. The study shows with what rhetorical means club members are framed and how news media balance a criminal and a non-criminal image. In news articles club members refer to ethical norms and group values, and appear to employ mitigation strategies which take the hard edges off the frame and simultaneously increase their credibility.

Collective violence around football has been a topic of research since the 1980s. In the Netherlands, in recent decades the size and severity of this problem have decreased sharply and the number of incidents has stabilized due to measures taken. At the same time, these measures have resulted in an increase of football-related incidents outside stadiums and on other days than match days. Confrontations based upon prior mutual agreements, so-called arranged confrontations, are an example of this. Based on multiple research methods, in this article the underlying causes of arranged confrontations and processes influencing individual participation are addressed. Results show that this type of collective violence and partaking in it has various causes and explanations. These fit with extant research literature in the area of group crime and collective violence and are incorporated in the recently developed initiation-escalation model.

This paper describes the results of twelve criminal investigations into criminal activities of hardcore supporters of a Dutch soccer club. The information from these criminal investigations consists of among other 74,246 transcribed, wiretapped telephone conversations and 643 pages with transcribed, secretly recorded conversations in cars (between March 2009 and June 2013). The organization and execution of these criminal activities (particularly large-scale drugs trade and extortion) is described within the context of the daily activities of these hardcore supporters. This context consists of regularly visiting soccer games (in the Netherlands and abroad), bars and the supportershome, and the subculture of hooliganism. The results show a criminal group using the opportunity structures related to hooliganism for carrying out criminal activities.