1) The Broken Windows Theory asserts that addressing minor crimes and disorder prevents more serious crimes. Commissioner William Bratton popularized broken windows policing in New York City in the 1990s, reducing crime.
2) In the 1970s, New Jersey launched a program to improve communities that increased residents' sense of security, though police were skeptical. Broken windows policing aimed to address small issues before they escalated.
3) Zero-tolerance policies, beginning in New York City in 1994, strictly enforced all laws without discretion. While crime dropped, the tactics eroded police-community relations and faced accusations of racial profiling.