The determinants of whether or not an immigrant seeks to become a citizen are still largely invisible to scholars; as are the decisions made during the naturalization process by street-level bureaucrats. Research on the acquisition of citizenship has incorporated a number of determinants of naturalization outcomes over the past decades, but lacks the contextualization of immigration law in its relation to criminal law. This systematic literature review of the 140 most-cited papers across the naturalization and crimmigration literatures seeks to construct a theoretical bridge between the disciplines in an effort to illuminate the blind spots challenging naturalization scholarship. I argue that the inclusion of crimmigration as a factor impacting naturalization is essential for scholarship in order to accurately use citizenship policies as an indicator of a state’s overall approach to immigration - particularly regarding residence requirements. The conceptual utilization of crimmigration in the context of citizenship acquisition offers new insights into the underexplored relationship between citizenship policy and the individual migrant, potentially uncovering some of the factors hindering immigrants’ ability to seek formal membership. Evidence within recent crimmigration scholarship points towards the role played by racialization within the functioning of a crimmigration system. This paper reviews the prominent streams of both strands of literature first utilizing a bibliometric analysis of the respective citation networks and second, diving into the substantial developments and parallels in naturalization and crimmigration research.