THE CURRENT RESEARCH ON CAUSATION, THE EXTENT OF THE DELINQUENCY PROBLEM, AND CONCEPTS UNDERLYING CERTAIN YSB TYPES ARE REVIEWED. ASSESSMENT OF THE JERSEY CITY PROJECT IS BASED ON DATA GATHERED THROUGH INTERVIEWS, AGENCY REPORTS, RECORDS, CONVERSATIONS, AND CORRESPONDENCE. CONCEPTS AND ASSUMPTIONS UNDERLYING THE PROJECT WERE THEN COMPARED TO CERTAIN NOMINATIVE PRESCRIPTIONS FOUND IN THE LITERATURE ON JUVENILE DELINQUENCY AND YSB'S. THE CASE STUDY CONCLUDED THAT THE JERSEY CITY PROJECT LACKED THE NECESSARY INPUT AND COMMUNITY PARTICIPATION TO WARRANT THE DESIGNATION OF A COMMUNITY BASED PROGRAM. OTHER LIMITATIONS INCLUDE ABSENCE OF PARAPROFESSIONALS ON STAFF AND INFLEXIBLE OFFICE HOURS. (AUTHOR ABSTRACT MODIFIED)