# Leonardo/ELSAG SignalTrace official product page > *Audited source extract. The dossier was used only as a lead; the underlying source was independently acquired and checked on 2026-07-20.* ## Source metadata - **Publisher:** Leonardo US Cyber and Security Solutions - **Original dossier URL:** https://www.leonardocompany-us.com/lpr/elsag-signaltrace - **Resolved/canonical URL used:** https://www.leonardocompany-us.com/lpr/elsag-signaltrace - **Publication date:** not stated / not independently established - **Underlying event or version:** not separately stated - **Archived:** 2026-07-20, from unauthenticated public access; no cookies, tokens, or login state retained - **Wayback snapshot:** save failed on 2026-07-20 after the archive service returned HTTP 403; retry pending ## Verification verdict **supported with narrower wording** — Leonardo's page supports its claims about device-signal collection, grouping/electronic fingerprints, plate correlation, off-road use, and operation without an LPR at every point. It is vendor description, not proof of Arkansas use or independent accuracy. ## Claim boundary This source is authoritative only within the source class and limitations stated above. ## Extract **Extracted-text lines 212-216:** > ELSAG SignalTrace > is a groundbreaking software system for law enforcement, designed to identify groups of consumer electronic devices that routinely travel together, even when a license plate number is not known. This system integrates seamlessly with the ELSAG Enterprise Operations Center, our highly advanced data management and analysis software. > Electronic devices such as fitness trackers, smartwatches, RFID tags and mobile phones emit signals into the air. SignalTrace creates an electronic fingerprint for groups of the signals that the system determines are frequently emitted together. These electronic fingerprints provide insights law enforcement can use in real-time policing and investigations. > This system uses strategically placed sensors to collect electronic communication patterns and identities of consumer electronics to create an additional data set to enhance the records captured by LPR cameras in the area. > ELSAG SignalTrace (formerly EOC Plus) : **Extracted-text lines 224-228:** > Performs with or without license plate readers at every collection site, allowing for a wider coverage area while keeping deployment costs down > How it works > As the devices emit signals, SignalTrace sites capture and correlate them together, along with LPR data if present. The data collected shows what group of devices are travelling together. Algorithms can determine which specific mix of devices are predictably moving together. That specific mix of devices—linked by common time stamps and locations—are described as an electronic fingerprint and can help develop leads that aid investigations. > For example:  while 70 cars in 100 may contain iPhones, only one will have an iPhone 13rev2, an Audi radio, a pair of Bose headphones, a Garmin sports watch, a key finder, and the license plate ABC-1234. The collection of data represented by these specific things is an electronic signature. > Technology that Respects the Rights of Individuals **Wayback failure**: The bounded Save Page Now pass stopped after the archive service returned HTTP 403 on the first request. This source was not individually retried; retry pending. ## Notes - Tier: 2 — vendor primary/self-description; authoritative only for the vendor's own claims. - The excerpt is bounded to the claims audited here; consult the preserved original for full context. - Cited by: see `citing_pages:` frontmatter; populated after wiki integration.