This is the idea that punishing persons who commit
crimes will prevent other similarly disposed individuals
from committing like offenses.
Criminals must be punished to the degree necessary to
impress those who would emulate them of the
undesirable consequences of crime.
Potential offenders discount the negative consequences
of crime by the improbability of being caught.
To be an effective deterrent, punishment would have to
be so severe that even those who did not believe that
they were going to be caught would not take the risk.
In practice, the criminal justice system strives to achieve
deterrence, but not at the expense of proportionality in