Organizations responsible for critical infrastructure often deploy private mobile networks to satisfy requirements for coverage, performance, and security. Infrastructure such as energy grids, transportation hubs, industrial sites, and correctional facilities often cover large areas in remote locations where commercial mobile coverage is inconsistent or insufficient. These sites may also need visibility and control over how communications are used, especially in restricted areas. Private networks help address these challenges by increasing operator control over radio coverage, device authentication, traffic prioritization, and integration with operational technology systems.
Especially when they are operated by government entities, private networks must often meet the same regulatory obligations for supporting lawful interception as public networks. Location and lawful intelligence can also play a crucial role in both physical and cyber security by controlling and monitoring access to the communications network while isolating traffic from public networks. At a time of rising threats, these measures directly support the missions of critical infrastructure and facilities, protecting against everything from internal threats to hostile nation-states.
Private network operators typically lack the long‑established compliance frameworks that exist at public mobile network operators (MNOs). Unfamiliar challenges include ensuring that lawful interception interfaces are implemented correctly, that location information is available and accurate, and that investigative workflows are compatible with operational integrity. The SS8 lawful intelligence platform, backed by over 25 years of implementation experience, expertly addresses those needs while unifying network intelligence, device visibility, and geospatial context across public and private domains.
Lawful Interception Across Private Network Deployment Models
A private network’s connectivity (or lack of connectivity) to public MNO networks is a central consideration for lawful intelligence. From that perspective, it can be described in one of three architecture categories: as an island air gapped from the outside world, as a logically isolated segment of a public network, or as a hybrid of the two. Each of those models provides discrete advantages for different types of deployments as well as different considerations for lawful interception, signaling visibility, and data correlation.
In a self-contained “island” architecture, all network functions and equipment reside within the private network, under the control of the operating organization. This model is common in remote infrastructure such as oil rigs or in high-security ones such as energy or defense installations and correctional facilities. Because the private operator controls the full stack, it has sole responsibility for interception mechanisms, data retention, and location services.
MNOs can define private networks using network slicing to create logical segments of the public network, using MNO fabric while retaining isolation from outside traffic. Using existing infrastructure is particularly valuable for implementations over very large areas, such as transportation corridors and distributed utility grids. While deployments can rely on the MNO for lawful interception compliance, organizations still require visibility into the locations and behavior of devices.
Hybrid deployments blend private RAN infrastructure with MNO‑hosted core services. Ports, airports, and large industrial campuses often adopt this approach, which provides dedicated coverage and local control while relying on the MNO for core network services and lawful interception compliance. SS8 expertise spans all three of these models, guiding private operators through complexity such as correlating private RAN events with operator core signaling for full-fidelity lawful intelligence in hybrid deployments.
Image Showing Allowed and Contraband Devices within a Private Network
Geofencing and Quiet Zones for High-Security Facilities
To enforce strict mobile‑device policies in sensitive environments, SS8 offers the Quiet Zone solution, which draws on its geofencing, passive location, active location, and heuristic analysis technologies. Monitoring and control capabilities within established Quiet Zones make it possible to identify and disable voice and data services for unauthorized mobile devices, including phones and anything else equipped with a SIM. This capability is often used to identify contraband cell phones in prisons, alongside applications from detecting a bomb detonation device to an illicit camera exfiltrating information from a secure facility.
The SS8 platform’s passive location technology defines a geofence perimeter around the Quiet Zone and identifies devices on the cellular network as they enter or exit. Enforcement practices include maintaining an Allow list that grants service to known, authorized devices such as handsets owned by trusted personnel. Visitors, vendors, and nearby residents can be temporarily added to the Allow List based on network policy. Disallowed devices can be added to a Deny List, with full auditability and regulatory confirmation workflows.
When detected, potentially unauthorized devices can be shifted to active location monitoring, with heuristics such as pattern-of-life analysis to detect their movements, dwell time, and behavior within the geofence. When the system determines with high confidence that a candidate device for enforcement is physically inside the restricted area, it can be manually or automatically disabled on the network. The SS8 platform integrates private networks and Quiet Zone events with the broader investigative context, fusing advanced visibility and control into the lawful intelligence operational canvas.
About Osman Perksoy
About SS8 Networks
As a leader in Lawful and Location Intelligence, SS8 is committed to making societies safer. Our mission is to extract, analyze, and visualize critical intelligence, providing real-time insights that help save lives. With 25 years of expertise, SS8 is a trusted partner of the world’s largest government agencies and communication providers, consistently remaining at the forefront of innovation.
Discovery is the latest solution from SS8. Provided as a subscription, it is an investigative force multiplier for local and state police to fuse, filter, and analyze massive volumes of investigative data – in real time.
Intellego® XT monitoring and data analytics portfolio is optimized for Law Enforcement Agencies to capture, analyze, and visualize complex data sets for real-time investigative intelligence.
LocationWise delivers the highest audited network location accuracy worldwide, providing active and passive location intelligence for emergency services, law enforcement, and mobile network operators.
Xcipio® mediation platform meets the demands of lawful intercept in any network type and provides the ability to transcode (convert) between lawful intercept handover versions and standard families.
To learn more, contact us at [email protected].
