Applying Crime Science to Preventing and Countering Violent Extremism: Insights for P/CVE Policy and Practice

Imagine a city trying to stop a fire. For a long time, the strategy was to wait until the flames were visible, then send in the firefighters to put them out. But modern safety experts know that the best way to stop a fire is to understand how heat builds up, how dry wood catches a spark, and how neighborhoods can be designed to resist burning in the first place. This shift in thinking—from reacting to disasters to preventing them—is the core of crime science. It is a field that studies not just the criminal act itself, but the conditions that allow it to happen: the environment, the opportunities, the social relationships, and the timing. When this same logic is applied to violent extremism, a complex and often frightening phenomenon where individuals adopt radical beliefs that lead to violence, the goal is to understand how to stop the process before it reaches the point of no return. The challenge has been that efforts to prevent extremism have often been fragmented, treating the issue solely as a security threat or an ideological problem, rather than looking at the broader social and environmental factors that shape human behavior.

In a new study, researchers Eva María Jiménez González and Antonio Jesús Molina Fernández explore how these established methods of crime prevention can be adapted to stop violent extremism. They did not conduct a new experiment or gather fresh data from the streets; instead, they acted as synthesizers, carefully reviewing existing research, international strategies, and policy documents to see what works in general crime prevention and how those lessons might fit the specific, delicate context of extremism. Their work suggests that the answer lies in building a layered system of prevention, much like the multiple defenses a community might use to protect itself, rather than relying on a single, heavy-handed solution. They argue that we must stop treating extremism as a unique monster that requires a unique set of rules, and instead see it as a problem that shares many of the same roots as other harmful behaviors, even if the specific causes differ.

The researchers found that effective prevention must start early, long before anyone is thinking about violence. This is known as developmental prevention. Just as a child's future health is shaped by nutrition, family support, and education, a person's path away from violence is influenced by their early environment. The study highlights that strengthening schools, families, and community bonds can create a buffer against the pull of extremist groups. However, the authors are very careful to warn against a common mistake: labeling ordinary struggles, like poverty or family conflict, as signs of future extremism. Doing so would be like assuming every person who catches a cold is about to get pneumonia; it creates fear and stigma without actually helping anyone. The goal is to support people's well-being generally, not to hunt for potential troublemakers.

Beyond the individual, the paper emphasizes the power of the community. A neighborhood where people trust each other and feel they can solve problems together is much harder for extremist groups to infiltrate. This concept, called collective efficacy, suggests that when residents and local institutions work together, they create a natural shield against harm. The study points out that this requires cooperation between many different groups—teachers, social workers, health providers, and police—who must share information and coordinate their efforts without letting any single group, especially the police, take total control. If the police are seen as the only leaders, people may stop trusting them, and the prevention effort will fail. Trust is the fuel that makes the whole system run.

The researchers also looked at how to reduce the immediate chances for violence to happen, a method called situational prevention. This involves changing the environment to make it harder for harmful acts to occur. In the physical world, this might mean better lighting or security; in the digital world, it could mean making it harder for extremist propaganda to spread online. But the authors caution that this is not a magic wand. If you block one path, the problem might simply move to another, a phenomenon known as displacement. Therefore, these measures must be part of a larger plan, not the only plan. They must be balanced with respect for human rights and democratic values, ensuring that the cure does not become worse than the disease.

A crucial finding of the study is that we cannot simply copy and paste solutions from general crime prevention and expect them to work perfectly on extremism. While the tools are similar, the context is different. The researchers argue for a process of "selective translation." This means taking a proven method, understanding exactly how it works, and then carefully adapting it to fit the specific situation of preventing extremism. For example, a program that helps at-risk youth in a general crime setting might need to be adjusted to address the specific feelings of injustice or identity that drive someone toward radicalization. The study stresses that we must keep a clear line between someone who is struggling with personal issues and someone who is actually engaging in violent extremism. Confusing the two leads to unfair treatment and wasted resources.

The paper concludes that the most effective way to prevent violent extremism is to build a system that is layered, local, and evidence-based. It requires early support that strengthens families and schools, community networks that foster trust, and situational measures that reduce opportunities for harm, all working together without one overpowering the others. The authors suggest that this approach is not just about stopping violence, but about building healthier, more resilient societies. By focusing on the conditions that allow people to thrive, rather than just the conditions that allow them to fall, we can create a safer world. The study does not claim to have solved the problem of extremism, nor does it promise a quick fix. Instead, it offers a practical map for navigating the complex terrain of prevention, reminding us that the best defense is a community that looks out for its own, guided by fairness, evidence, and a deep understanding of human nature.