- The Guardian Angels "is a non-profit international volunteer organization of unarmed citizen crime patrollers. The Guardian Angels organization was founded February 13, 1979 in New York City by Curtis Sliwa and has more than 130 chapters around the world.Sliwa originally created the organization to combat widespread violence and crime on the New York City Subway system. The organization originally trained members to make citizen’s arrests for violent crimes. The organization patrols the streets and neighborhoods but also provides education programs and workshops for schools and businesses."
- Guardian Angels return to Central Park as crime rises - VIDEO - 28 October 2015
"Back in the 1980s when New York was gripped by violent crime, the Guardian Angels were a familiar sight patrolling the city's streets and subway...
Whatever the cause, the Guardian Angels' founder Curtis Sliwa says his volunteers are responding to calls from residents who no longer feel safe in parts of Central Park. The BBC joined them on patrol."