This paper examines the evolving landscape of EU border governance amid rising transnational crime, the proliferation of new surveillance technologies, and major legal-institutional reforms. It analyses how drones, biometric systems and interoperable EU databases, including Eurodac, EES, SIS II, VIS and ETIAS, have transformed detection, identification and investigative capacities at EU’s Eastern external borders. It further evaluates the expanding mandates of Europol, Eurojust, and Frontex, highlighting the growing role of Joint Investigation Teams in the fight against organised-crime networks. While these developments enhance operational efficiency and cross-border coordination, they also raise significant human rights concerns. The paper argues that the EU’s emerging border architecture offers clear investigative and preventive advantages, but its long-term legitimacy depends on embedding adequate oversight, evidentiary safeguards and rights-protective standards into technologically driven border and criminal-justice practices.