Contemporary Issues in Law, Culture, and Globalization 3092-7250 1 Serial Number 6 2025 11 01 Legal Adaptation to Global Migration Flows: Institutional Responses and Social Challenges Legal Adaptation to Global Migration Flows: Institutional Responses and Social Challenges 11 21 EN Journal Article 2025 06 11 <p>This study aimed to explore how legal and administrative institutions adapt to global migration flows and how such adaptations shape social challenges, rights access, and institutional practice in Tehran. A qualitative descriptive design was used. Data were collected through semi-structured interviews with 24 participants in Tehran, including legal practitioners, public-sector administrators, NGO and humanitarian workers, academic experts, and migrant-community advocates. Participants were selected through purposive and snowball sampling based on their professional or experiential engagement with migration-related legal and social issues. Interviews continued until theoretical saturation was achieved after the twenty-first interview, with three additional interviews conducted for confirmation. The interviews were audio-recorded, transcribed verbatim, anonymized, and analyzed using inductive thematic analysis supported by NVivo software. Trustworthiness was strengthened through member checking, peer debriefing, analytic memo writing, and maintenance of an audit trail. The analysis produced five main categories: reactive legal adaptation and administrative improvisation; documentation as the gateway to rights and vulnerability; fragmented institutional coordination; urban social challenges and public perceptions; and the tension between sovereignty, security, and human-rights protection. Participants described institutional responses as active but uneven, with frontline officials often relying on discretionary practices when formal legal frameworks were unclear or slow to respond. Documentation status emerged as the central mechanism through which migrants accessed or lost access to employment, education, housing, health care, and legal protection. The findings suggest that legal adaptation to migration flows requires more than policy revision; it depends on predictable procedures, inter-institutional coordination, rights-based implementation, and local social trust. In Tehran, institutional responses are shaped by the simultaneous pressures of humanitarian need, administrative capacity, public concern, and state sovereignty. A more integrated legal-social model is needed to reduce legal uncertainty, protect vulnerable migrants, and strengthen institutional legitimacy.</p> https://journalcilcg.com/index.php/cilcg/article/download/42/34