Crime Opportunity theory is a theory that suggests that offenders make rational choices and thus choose targets that offer a high reward with little effort and risk. The occurrence of a crime depends on two things: the presence of at least one motivated offender who is ready or willing to engage in a crime, and the conditions of the environment in which that offender is situated, to wit, opportunities for crime. All crimes require opportunity but not every opportunity is followed by crime. Similarly a motivated offender is necessary for the commission of a crime but not sufficient. A large part of this theory focuses on how variations in life-style or routine activities affect the opportunities for crime (Hindelang, Gottfredson, and Garofalo 1978; Cohen and Felson 1979; Cohen, Felson, and Land 1980).
Opportunity thus becomes the limiting factor that determines the outcome in environments prone to crime because the offender generally has little or no control over the conditions of the environment, and the conditions that permit particular crimes are often rare, unlikely or preventable.
The idea that daily activities create the convergence in time and space of the three elements necessary for a crime to occur: motivated offenders, suitable targets, and the absence of capable guardians. The theory argues that available opportunities are an important component in the crime calculus. Choices in lifestyle on the part of potential victims may create or curtail crime opportunities for the motivated offender
The rational choice perspective tries to understand crime from the perspective of the offender. It is directly concerned with the thinking processes of offenders, how they evaluate criminal opportunities, why they decide to do one thing rather than another, and why they choose to obtain their ends by criminal and not legal means. This perspective has helped to explain why displacement does not always occur and has helped develop different ways to reduce opportunities for crime (Cornish and Clarke, 1986; Barnes, 1995).
According to criminologist C. Ray Jeffery, crime results partly from the opportunities presented by physical environment therefor it is possible to alter the physical environment so that crime is less likely to occur. He argues that sociologists overstated the social causes of crime, and neglected both biological and environmental determinants. Situational Crime Prevention introduces discrete managerial and environmental changes to reduce the opportunity for crimes to occur. It is focused on the settings for crime and seeks to predict the occurrence of crime. It suggests that much offending can appropriately be viewed not simply as the product of deep social, economic, and psycho-logical causes but also as the result of deliberate choices by individuals. Therefore, by making criminal action less attractive to offenders, criminal behavior can be curved.