Types
Several factors must come together for a crime to occur:
- an individual or group must have the desire or motivation to participate in a banned or prohibited behavior;
- at least some of the participants must have the skills and tools needed to commit the crime; and,
- an opportunity must be acted upon.
Primary prevention address individual and family level factors correlated with later criminal participation. Individual level factors such as attachment to school and involvement in pro-social activities decrease the probability of criminal involvement.
Family level factors such as consistent parenting skills similarly reduce individual level risk. Risk factors are additive in nature. The greater the number of risk factors present the greater the risk of criminal involvement. In addition there are initiatives which seek to alter rates of crime at the community or aggregate level.
For example, Larry Sherman from the University of Maryland in Policing Domestic Violence (1993) demonstrated that changing the policy of police response to domestic violence calls altered the probability of subsequent violence. Policing hot spots, areas of known criminal activity, decreases the number of criminal events reported to the police in those areas. Other initiatives include community policing efforts to capture known criminals. Organizations such as America's Most Wanted and Crime Stoppers these help catch the criminals.
Secondary prevention uses techniques focusing on at risk situations such as youth who are dropping out of school or getting involved in gangs. It targets social programs and law enforcement at neighborhoods where crime rates are high. The use of secondary crime prevention in cities such as Birmingham and Bogotá have achieved large reductions in crime and violence. Programs that are focused on youth at risk have been shown to significantly reduce crime.
Tertiary prevention is used after a crime has occurred in order to prevent successive incidents. Such measures can be seen in the implementation of new security policies following acts of terrorism such the September 11, 2001 attacks.
Situational crime prevention uses techniques focusing on reducing on the opportunity to commit a crime. Some of techniques include increasing the difficulty of crime, increasing the risk of crime, and reducing the rewards of crime.
Read more about this topic: Crime Prevention
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