Two developments are discussed that have a significant influence on the scope and content of the penology of the future, but otherwise have little to do with each other: The expansion of the sentencing field has resulted in a completely fluid research field. However, the important questions of penology can only be answered by integrally mapping and analyzing that sentencing field. For that reason, penology should radically free itself of the limitation of its field of research to the penal sanction. Ongoing insight into the functioning of the brain and the predictability of behavior on the basis of algorithms shine a different light on the portraits of mankind on which we base punishment. It also exposes a range of new possibilities to influence behavior and prevent criminal behavior. It is also part of the research field of penology to question which of those possibilities we want to use and under which conditions.

Terrorism could be regarded as an extreme type of (violent) criminal behaviour. Against this background, there is much to gain if criminological attention would be extended to terrorism. In this overview, the authors describe how and to what extent criminological theories may provide a significant contribution to underlying causes of terrorism. Previous criminological contributions to the field of terrorism have primarily taken a theory-extended approach, including routine activity theory, rational choice theory and strain theory. However, so far such studies lacked empirical data. Further, to this day, not much is known about the empirical applicability of other criminological theories, including desistance theories, which warrant particular attention. In order for criminology literature to contribute effectively to our understanding of terrorism and to pursue better counter-terrorism policies, empirical evidence should first be obtained. In this way, terrorism researchers, in close collaboration with criminologists, can deepen our theoretical and empirical understanding of this relatively underexplored field.

The present article examines the financial life of 131 jihadi travellers (JTs), also known as foreign terrorist fighters, from the Netherlands. For the purpose of the research, access was acquired to all their banking transactions in the year preceding their departure: over 60,000 transactions in total. Their income from work or employment, various forms of social assistance, student grants, and other income or expenditure were examined. The data provided a good picture of their financial independence, i.e., the extent to which they were capable of making their own living or needed to claim assistance from the authorities. The analysis shows that it is highly exceptional for Dutch JTs to be financially independent. Only 5 percent have sufficient income from work or employment without making any claims on the government for financial assistance, and are free of mounting debts. The low score can for a large part be explained by the fact that almost half of the JTs are under 23 years of age and/or receive a student grant. Their financial picture largely resembles ordinary students. Older JTs (over 22 years of age, and not having received a student grant for at least one year) underperform, however. Only 9 percent are financially independent. Financial support could perhaps be used to monitor or steer recipients’ role in society.