Modern Jurisprudence and Law

Modern Jurisprudence and Law

The Role of Dopaminergic Dysfunction in Criminal Behavior among Drug Addicts and Corrective-Therapeutic Interventions (A Comparative Study on International Instruments and the countries of United States, Germany, and Italy)

Document Type : Original Article

Authors
1 Assistant Professor of Criminal Law and Criminology, Roshdiyeh Institute of Higher Education, Tabriz, Iran.
2 MA in Criminal Law and Criminology, Islamic Azad University, Tabriz Branch, Tabriz, Iran.
3 MA in Private Law, Islamic Azad University, Tabriz Branch, Tabriz, Iran.
4 MA in Criminal Law and Criminology, Islamic Azad University, Qom Branch, Qom, Iran.
10.22034/jml.2025.2067862.1499
Abstract
Background and Objective: Dysregulation of dopaminergic pathways—which play a key role in reward processing, motivation, learning, and decision-making—not only contributes to the propensity for drug use but may also be associated with criminal behavior. Accordingly, substance use disorders represent a complex issue that intersects with the criminal justice system. This study investigates the role of dopaminergic dysfunction in individuals with substance use disorders, exploring its connection to criminal behavior and examining the implications for corrective and therapeutic interventions within the judicial system.
Method: This research adopts a descriptive-analytical approach, utilizing library-based sources including reputable books and scholarly articles to analyze the issue and draw relevant conclusions.
Findings: Evidence indicates that prolonged drug use causes significant alterations in the brain's dopamine system. These alterations include a reduction in dopamine receptors, heightened reactivity to drug-related cues, and impaired functioning of the prefrontal cortex—manifesting in addiction-related symptoms such as craving, compulsive use, and poor decision-making. These dysfunctions, particularly increased impulsivity and aggression during drug use or withdrawal, are linked to criminal behaviors such as theft, substance-related offenses, and violence.
Conclusion: Understanding the role of dopamine in the addiction process can enhance the capacity of the criminal justice system to make more accurate and informed decisions. A deeper insight into the neurobiological mechanisms underlying addiction may encourage a reevaluation of how drug-related crimes are addressed, promoting more appropriate criminal justice policies. Integrating effective therapeutic interventions—including pharmacological treatments and psychosocial approaches—into correctional and judicial procedures could help reduce criminal behavior. Within an ethical framework, such an approach offers the potential for more scientific and humane responses to addiction within the context of criminal justice.
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