ERIC Number: ED140155
Record Type: RIE
Publication Date: 1977-Feb
Reference Count: 0
Felony Investigation Decision Model: An Analysis of Investigative Elements of Information.
Greenberg, Bernard; And Others
The primary goal of research performed in Oakland, California was decision models for four felony classes--robbery, assault, with a deadly weapon, car theft, and rape--to determine cases having sufficient probability of clearance to warrant intensive investigation. A secondary objective, determination of personal-appearance and crime-event descriptors contributing to offender ID and case solution by investigators, led to consideration of the value of computers in the investigative function. Only for robbery it was found feasible to construct a decision model. Primary case-solution factors, e.g., victim knowledge of offender, statistically dominated other, random factors. The findings showed that, unless offender ID was made by responding officers, case solution at the detective level was minimal. Therefore, it was concluded that patrol and investigative functions cannot be viewed as completely separate. Documentation of relevant crime scene information by patrol heavily influences case solution by investigators. The findings reinforced the importance of a national issue: habitual offenders. Analyses of the felony case sample drawn showed 80-88% of the suspects had prior offenses. Confronted by similar experience many police agencies have turned to computer-based M.O.-type investigative systems to assist in tracking and models for four felony classes--robbery, assault with a deadly weapon, car theft, and identifying known offenders. (Author)
Descriptors: Computer Oriented Programs, Crime, Criminology, Law Enforcement, Models, Police, Police Action, Rape, Research, Violence
Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 (Stock Number 027-000-00467-9, $3.00)
Publication Type: Reports - Research
Education Level: N/A
Authoring Institution: National Inst. of Law Enforcement and Criminal Justice (Dept. of Justice/LEAA), Washington, DC.
Note: Due to small size of print in original document, tables, figures, and Appendix C may reproduce poorly