Septier Mobile Guard Tower by Septier Communication offers advantages over fixed installations for monitoring and preventing illegal device usage in correctional facilities. It is versatile and decentralized, allowing for tactical acquisition and protocol-based positioning of cellular devices. It also enables last-mile positioning for operational activity, IMSI catching, and blocking Wi-Fi connections and hotspots. Based on the Septier GUARDIAN infrastructure and the fixed solution Septier Guard Tower, Septier Mobile Guard Tower offers a decentralized way to manage cellular devices in correctional facilities. It provides critical information for tactical teams to perform operations and interrupt the smuggling of illegal devices and other illicit products. The Hunter, a directional finder, allows for pinpointing the location of potential targets. The latest evolution of Septier’s Guard Tower, Septier Mobile Guard Tower, enhances performance in securing correctional facilities. It is available in various form factors: rigid suitcases, vehicle-mounted installations, and portable backpacks, with transmission power ranging from 10mW to 600W, depending on the configuration.