1) OLD CONCEPT - police service gives the impression of being merely a suppressive machinery. This philosophy advocates that the measurement of police competence is the increasing number of arrests, throwing offenders in detention facilities rather than trying to prevent them from committing crimes .
2) MODERN CONCEPT - regards police as the first line of defense of the criminal justice system, an organ of crime prevention. Police efficiency is measured by the decreasing number of crimes. Broadens police activities to cater to social services and has for its mission the welfare of the individual as well as that of the community in general.
