Legal Studies in Digital Age In Press 2026 07 01 The Impact of Social Media on Criminalization and Criminal Behaviors in the Criminal Justice Systems of Iran and Afghanistan The Impact of Social Media on Criminalization and Criminal Behaviors in the Criminal Justice Systems of Iran and Afghanistan 1 13 EN Journal Article 2026 01 01 <p>Social media, as one of the most significant manifestations of communication transformation in the digital era, plays a substantial role in shaping attitudes, social interactions, and behavioral patterns of individuals. The rapid expansion of these platforms, while creating extensive opportunities for information dissemination, social participation, and crime prevention, has simultaneously provided grounds for the emergence and development of new forms of criminal behavior, thereby confronting legal systems with serious challenges in the fields of criminalization and criminal policy-making. The present study adopts a descriptive–analytical approach and relies on library-based sources to examine the role of social media in the formation and evolution of criminal behaviors and their impact on the process of criminalization in Iran and Afghanistan. The article first clarifies the concept of social media and criminalization, as well as the governing principles underlying criminalization policies. Subsequently, drawing upon criminological theories—including social learning theory, cultivation theory, labeling theory, and arousal theory—the mechanisms through which media influence criminal behaviors are analyzed. The findings indicate that social media, through facilitating observational learning, normalizing violence, and amplifying certain behaviors, may play an effective role in the expansion of crimes such as online fraud, virtual defamation, dissemination of false information, and offenses against national security. The study then comparatively examines the legal frameworks and criminal policies of Iran and Afghanistan, explaining the similarities and differences in approaches to criminalization and penal responses toward media-related crimes. The results demonstrate that social media possess a dual nature, and that effective criminal policy in this domain requires the adoption of a balanced approach combining penal control, social prevention strategies, and the promotion of media literacy—an approach capable of safeguarding social security while simultaneously protecting the fundamental rights and freedoms of citizens.</p> https://www.jlsda.com/index.php/lsda/article/download/368/339