The Westchester County Department of Public Safety provides a range of security services to the residents of Westchester County in New York. Its patrol service division inspects parkways to ensure the safety of commuters and mobility of traffic. The department s officers conduct education and enforcement initiatives to minimize the loss of life, injuries and property damage caused by traffic accidents, dangerous driving practices and impaired motorists. The Westchester County Department of Public Safety also serves as an ever-present resource for local law enforcement systems. Its forensic investigation unit provides expert analysis and testimony in the disciplines of crime scene, digital evidence, ballistics and latent prints. The department works in collaboration with its special operation division. The Westchester County Department of Public Safety also works to protect residents and critical infrastructure from domestic and international terrorism