Block Watch (or Neighbourhood Watch) is a community crime prevention program where neighbours work together to watch out for each other and report suspicious activity to police. Participants learn to recognize and report unusual activities, take steps to secure their homes, and communicate with neighbours about safety concerns. Programs are typically coordinated through local police services, which provide signage, training, and support. Block Watch aims to reduce crime through increased vigilance and community connection—criminals may be deterred when they know residents are watching. The program also builds community bonds and can improve overall neighbourhood quality of life.