Loudoun County
County record. Includes every city and agency within Loudoun County.
Technology presence
What these categories mean
- ALPR
- Automated license plate readers (ALPR): camera systems that automatically capture, read, and log vehicle license plates with location and time, producing a searchable record of vehicle movements.
- Fixed cameras & RTCC
- Agency-operated fixed video cameras and the real-time crime centers (RTCC) that aggregate live and recorded feeds for monitoring. Extends the Electronic Frontier Foundation's Atlas, which enumerates real-time crime centers and camera registries but not standalone fixed-camera estates.
- Face recognition
- Software that matches faces in images or video against a reference database to identify or verify individuals.
- Drones / UAS
- Uncrewed aerial systems (UAS), commonly called drones, operated by an agency for overhead observation, imaging, or sensing.
- Gunshot detection
- Networks of acoustic sensors that detect and locate suspected gunfire and alert an agency.
- Body-worn & dashcam
- Officer body-worn and in-vehicle dashboard cameras that record encounters; public access to the footage is frequently restricted.
- Doorbell & camera registry
- Programs that give an agency access to privately owned camera footage: doorbell-camera partnerships, citizen camera registries, and private-camera integration platforms.
- Cell-site simulators
- Devices that mimic cell towers to locate or identify nearby mobile phones. They are often called Stingrays, or IMSI catchers after the international mobile subscriber identity (IMSI) number that identifies each phone on a network. Adjacent: communications surveillance outside the visual/sensor core.
- Predictive policing
- Software that forecasts where crime may occur or who may be involved, to direct policing. Adjacent: analytics rather than a sensing deployment.
- Social-media monitoring
- Tools that collect and analyze public social-media activity for an agency. Adjacent: open-source/communications monitoring outside the visual/sensor core.
The record, by agency
Leesburg Police Department
The Leesburg Police Department uses automated license plate readers, according to 2024 data.
Sources (via the EFF Atlas): MuckRock
The Leesburg Police Department uses body-worn cameras.
Sources (via the EFF Atlas): Leesburg Police Department
Purcellville Police Department
The Purcellville Police Department received $40,000 from the Bureau of Justice Assistance to purchase 20 body-worn cameras through the 2022 Small, Rural, Tribal BWC Microgrant program.
Sources (via the EFF Atlas): Small, Rural, and Tribal Body-Worn Camera microgrant grantee list
The Purcellville Police Department maintains a voluntary registry of private and personal surveillance cameras through Motorola Solutions' CityProtect platform.
Sources (via the EFF Atlas): CityProtect
Loudoun County Sheriff's Office
The Loudoun County Sheriff's Office had 74 body-worn cameras as of October 2020.
Sources (via the EFF Atlas): Department Policy documentNBC 4Loudon County
The Loudoun County Sheriff's Office operates one Lockheed Martin Indago drone as of 2017, according to data compiled by the Center for the Study of the Drone at Bard College.
Sources (via the EFF Atlas): Center for the Study of the Drone at Bard Collegeloudounnow.comwww.loudountribune.com
The Loudoun County Sheriff's Office maintains a voluntary registry of private and personal surveillance cameras through Motorola Solutions' CityProtect platform.
Sources (via the EFF Atlas): CityProtect
U.S. Customs and Border Protection - Dulles International Airport
The Dulles International Airport is one of 18 airports where Customs and Border Protection is using face recognition technology as of March 2019. An executive order signed by Pres. Trump in 2019 requires Customs and Border Protection to install face recognition technology at the United States' top 20 airports by 2021.
Sources (via the EFF Atlas): BuzzfeedTechCrunch
Source: EFF Atlas of Surveillance (Electronic Frontier Foundation & University of Nevada, Reno — Reynolds School of Journalism) · CC BY 4.0 · retrieved July 2026