In Iranian criminal law, theories related to land grabbing have not been systematically enumerated nor fully criminalized, and its criminal characterization is not based on a single law or unified jurisprudence but rather on multiple legal interpretations, definitions, and statutory provisions. A comparative criminological examination of land grabbing within Iranian criminal law and Imami jurisprudence can facilitate a rigorous scientific analysis of this issue. Consequently, this study aims to investigate the criminology of land grabbing in Iranian criminal law with reference to Imami jurisprudence. The research employs a descriptive-analytical method, utilizing library and documentary data collection, with required information being coded, categorized, and analyzed. The final findings indicate that existing regulations do not recognize a specific crime titled "land grabbing." Instead, it is generally addressed as unlawful occupation, where illegal seizure of private or state-owned lands is criminalized as "Usurpation," punishable by one month to one year of imprisonment. According to Imami jurisprudence, the Imam's permission for land acquisition and the non-applicability of the "land grabbing" designation are essential, with the requirement of authorization from the Islamic ruler serving as a preventive measure against the proliferation of this phenomenon. Any occupation of state lands must occur within a defined framework and under the supervision and permission of the societal authority.