Aggressive Policing and the Deterrence of Crime

Recent analyses of the relationship between crime and an aggressive patrol strategy have led to no single conclusion concerning the deterrent power of aggressive policing. This research adds to that debate by exploring the effects of a variety of aggressive patrol tactics on several different crimes. The empirical analysis, based on cross-sectional data from sixty urban neighborhoods, indicates that there appears to be no stable complex of police actions that constitute an aggressive patrol strategy. However, one form of police action usually included under the rubric of aggressive patrol—suspicion stops—may indeed deter certain types of criminal activity.     

THE IMPACT OF POLICE INVESTIGATIONS ON POLICE-REPORTED RATES OF GANG AND NONGANG HOMICIDES*

This paper is concerned with the utility of police-reported rates of gang violence, particularly important in an era which stresses officially determined rates of violence. The basic question is whether police investigation procedures have a major impact on the police designations of homicides as gang related, a question of causal order answerable only by the triangulation provided by multiple forms of data analysis. With minor qualification, the results suggest that“gang” designations of homicides reject characteristics of the incident settings and participants, that intrusion of investigative processes on reported gang versus nongang homicide rates was minimal, and that gang homicide rates reported by these departments could be used as reasonable criteria for evaluating program impact.     

DIFFERENCES BETWEEN GANG AND NONGANG HOMICIDES*

Does gang-related homicide direr sufficiently from nongang homicide to warrant specialized law enforcement response? Both cross-tabular and discriminant analyses of data from over 700 homicide investigation files reveal substantial differences in ethnicity, age, number of participants, and relationship between participants. Gang homicides are also more likely to involve public areas, automobiles, firearms, and, in one jurisdiction, associated offenses and injury to other victims. Gang incidents present unique problems to investigators, who may well benefit from specialized skills of experienced gang experts.