This study evaluates the immigration policy applied to foreign nationals at the Class I Special Immigration Office TPI Surabaya under Law Number 6 of 2011 on Immigration. Indonesian scholarship on this policy has largely asked whether it is executed as prescribed; it has rarely asked whether the results obtained justify the resources committed and resolve the problem that gave rise to the policy. The study therefore adopts an evaluative rather than an implementation lens, applying the six criteria formulated by Dunn: effectiveness, efficiency, adequacy, equity, responsiveness, and appropriateness. A qualitative evaluative case study was conducted through semi-structured interviews with officials of the information and communication unit, the intelligence and enforcement unit, and the stay-permit unit, interviews with foreign nationals as service users, direct observation of service and supervision procedures, and documentary analysis of annual reports, enforcement records, and the 2024 budget document. The office performs strongly on efficiency and responsiveness: an electronic visa is issued within one day, a limited stay permit can be processed entirely from abroad, and passport endorsement is completed in one to two working days, supported by an operating budget of Rp29,831,987,000 in 2024, equivalent to approximately Rp53,700 for each foreign arrival and departure recorded at Juanda. Effectiveness is confirmed for service-delivery targets but is weaker for supervisory targets: 192 enforcement actions were recorded between 2022 and 2024, of which 114 were deportations, against 293,712 foreign arrivals in 2024 alone. Adequacy is the weakest criterion, because supervision reaches documentary compliance far more reliably than it reaches the actual activities of foreign nationals in the field. Equity varies across categories of foreign nationals, and appropriateness is qualified by an unresolved tension between facilitating mobility and controlling it. The study recommends reorienting internal evaluation from output counts toward outcome indicators, converting the Foreigner Supervision Team from a coordinating forum into a joint operating mechanism with a shared database, and institutionalising periodic compliance evaluation of issued stay permits.