City of Portland
Cumberland County · Maine
3
Deployments on record
2
Agencies
2
Technology categories
Technology presence
ALPR · none on record
Fixed cameras & RTCC · none on record
Face recognition · none on record
Drones / UAS · none on record
Gunshot detection · none on record
Body-worn & dashcam · 2
Doorbell & camera registry · none on record
Cell-site simulators · none on record
Predictive policing · 1
Social-media monitoring · none on record
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
Portland Police Department
Body-worn & dashcam
The Portland Police Department has used body-worn cameras since 2018.
Sources (via the EFF Atlas): WMTW813 WGMEpublic.flourish.studio
Predictive policing
The Portland Police Department has used predictive policing technology since at least 2014.
Sources (via the EFF Atlas): Press HeraldPress Herald
Cumberland County Sheriff's Office
Body-worn & dashcam
Vendor: Axon
The Cumberland County Sheriff's Office purchased 20 Axon body-worn cameras in 2019 for $80,000. The office received federal funding for BWCs in 2022.
Sources (via the EFF Atlas): The Daily JournalUS Bureau of Justice Assistance
Source: EFF Atlas of Surveillance (Electronic Frontier Foundation & University of Nevada, Reno — Reynolds School of Journalism) · CC BY 4.0 · retrieved July 2026