∴ Introduction ∴ ‌
The intellectual growth and maturity of adolescent offenders hold critical importance in shaping fair and effective judicial responses within Iran’s criminal justice system. While Iran’s Islamic Penal Code of 2013 introduced noteworthy reforms by differentiating between adult and juvenile offenders, Article 91 leaves room for ambiguity in determining “criminal maturity.” Consequently, judicial authorities have often resorted to subjective standards or followed the findings of forensic commissions without clear procedural guidelines. This lacuna undermines both the consistency of court decisions and the credibility of juvenile justice. Recognizing these challenges, the present study focuses on identifying and categorizing objective criteria that can inform a more coherent legal framework for assessing adolescents’ intellectual growth and maturity, thereby strengthening Iran’s juvenile justice policies.

‌ ∴ Research Question ∴ ‌
This article aims to address a central question: What are the most suitable and practically applicable criteria for ascertaining the intellectual growth and maturity of adolescent offenders in Iran’s criminal justice system, particularly in light of Article 91 of the Islamic Penal Code? By refining the existing standards, the study seeks to offer insights that enhance the consistency and transparency of juvenile court proceedings.

‌ ∴ Research Hypothesis ∴ ‌
The core hypothesis posits that current legislative and judicial frameworks in Iran do not provide sufficiently clear or comprehensive guidelines for determining adolescents’ intellectual growth and maturity. As a result, significant variability emerges in judicial decisions, creating inequities in sentencing and sometimes jeopardizing the rights and welfare of juvenile offenders. The study further hypothesizes that drawing upon both Islamic jurisprudential principles and international human rights instruments can help form a balanced set of objective criteria, ultimately rectifying present inconsistencies.

‌ ∴ Methodology & Framework, if Applicable ∴ ‌
Employing a doctrinal research method and extensive library-based inquiry, this study systematically examines the statutory provisions of the Islamic Penal Code, related guidelines, and relevant Islamic jurisprudential texts. In addition, it analyzes human rights conventions and comparative legal models to extract functional benchmarks for assessing adolescent maturity. Case analyses from the Legal Medicine Organization’s forensic evaluations and judicial verdicts illuminate existing practices and point to the gaps in current policy. The research framework thus marries theoretical perspectives with empirical observations to propose a structured typology of indicators—from cognitive awareness of wrongdoing to emotional and psychosocial development—that courts can use when adjudicating cases involving juvenile offenders.

‌ ∴ Results & Discussion ∴ ‌
The findings of this study reinforce the view that Iran’s existing legal and judicial mechanisms do not sufficiently articulate concrete criteria for determining the criminal maturity of offenders under the age of 18. By examining documented case files, court rulings, and forensic assessments, the research reveals a high degree of variance in judicial practice. Despite the Islamic Penal Code’s intention to align domestic norms with both Islamic jurisprudential principles and international obligations, judges often face ambiguities due to a lack of standardized guidelines. In practice, the reliance on Article 91’s broad stipulation—where courts “may consult the Legal Medicine Organization or use any other appropriate means”—has led to inconsistent procedures.
Moreover, the “Guideline for Determining the Intellectual Growth and Maturity of Individuals Under the Age of 18,” introduced in 2023, centralizes the role of the Legal Medicine Organization’s forensic commission but remains silent on supplementary indicators necessary for an objective assessment. As a consequence, judges in Juvenile Criminal Court One either strictly adhere to forensic opinions without considering contextual or psychological evaluations or disregard these opinions based on alternative, sometimes personal, criteria.
Through a doctrinal analysis of relevant legal texts, cross-referencing scholarly commentaries in Islamic jurisprudence and international human rights documents, this research shows that a multi-dimensional framework is urgently required. Factors such as psychological evaluations, personality assessments, behavioral reports, the defendant’s understanding of legal prohibitions, and cognitive indicators during and after the commission of the offense offer a more comprehensive basis for establishing intellectual maturity. Integrating these factors not only curbs the risk of arbitrary sentencing but also aligns judicial outcomes with the rehabilitative ethos central to juvenile justice. Overall, the results underscore the need for greater legislative specificity and a collaborative approach, wherein legal, forensic, and psychosocial perspectives collectively shape the determination of an adolescent offender’s criminal maturity.

‌ ∴ Conclusion ∴ ‌
The enactment of Article 91 of the Islamic Penal Code of 2013 represents a dual effort to honor Islamic legal traditions and fulfill international human rights obligations. On paper, this provision champions a progressive approach by recognizing that individuals who have reached puberty but remain under 18 may lack the requisite intellectual maturity to bear full criminal responsibility—particularly for crimes punishable by Hadd [prescribed punishment] or Qisas [retaliation]. In practice, however, the absence of explicit criteria has paved the way for inconsistent and, at times, discretionary rulings.
Although the note to Article 91 allows courts to consult the Legal Medicine Organization or employ other reasonable methods, this guidance remains too broad to ensure uniformity. Equally, the 2023 guideline on determining criminal maturity, which relies almost exclusively on forensic commission opinions, has not resolved the ambiguity. Judges frequently issue verdicts that either hinge solely on forensic input or contravene these findings without substituting any clear, objective standard.
In light of these lacunae, it becomes evident that a purely theoretical review of Islamic jurisprudence and human rights doctrines will not suffice. Practical benchmarks—ranging from psychological profiling and social worker evaluations to witness statements, the defendant’s comprehension of wrongdoing, and investigatory findings—must be systematically incorporated into the adjudicative process. The study concludes that when such objective measures are thoroughly utilized, many juvenile defendants lack the intellectual growth and maturity necessary to justify the imposition of Hadd or Qisas penalties. By embedding these guidelines into routine judicial practice, Iran’s juvenile justice policy can move closer to ensuring both fairness and consistency in cases involving adolescent offenders.