http://sls.iykpqm7jiradoeezzkhj7c4b33g4hbgfwelht2evxxeicbpjy44c7ead.onion/technologies/community-surveillance-apps
How it works These apps come in a wide spectrum—some let users connect with those around them by posting pictures, items for sale, or local tips. Others, however, focus exclusively on things and people that users see as “suspicious” or potentially hazardous, while others generate and map alerts based on 911 calls.