THE SUPPLEMENT EMPHASIZES SIX AREAS OF CONCERN: (1) COORDINATION OF THE SYSTEM, (2) DIVERSION OF THE JUVENILE TO COUNSELING AND RELEASE OR COMMUNITY-BASED PROGRAMS INSTEAD OF ADJUDICATION, (3) REPEAT OFFENDERS, (4) DETENTION OF JUVENILES AWAITING ADJUDICATION OR REFERRAL TO A COMMUNITY PROGRAM, (5) THE YOUTH CORRECTIONAL FACILITY, AND (6) JUVENILE PAROLE AND PROBATION. ALL THE STUDIES DEFINE THE PROBLEM, PROVIDE STATISTICAL DATA AND ANALYSIS, AND MAKE CONCLUSIONS AND RECOMMENDATIONS FOR IMPROVEMENT. THE COORDINATION STUDY DESCRIBES THE FUNDAMENTAL PROBLEM OF SYSTEM COORDINATION THROUGH BOTH FORMAL AND INFORMAL MEANS, THE CONDITIONS FOSTERING FRAGMENTATION, SOME EXAMPLES OF COORDINATION WORKING WELL, AND SOME SUGGESTED METHODS FOR IMPROVING THE SITUATION. THE DIVERSION STUDY DEALS WITH THE JUVENILE JUSTICE PLAN'S EMPHASIS ON SENDING DELINQUENTS TO COMMUNITY-BASED AGENCIES FOR TREATMENT RATHER THAN TO FORMAL ADJUDICATION IN FAMILY COURT. IT PROVIDES INFORMATION ON HOW DIVERSION WORKS AND DATA WHICH PARTIALLY INDICATES THE SUCCESS OF DIVERSION IN PREVENTING JUVENILES FROM REPEATING OFFENSES. THE REPEAT OFFENDERS STUDY DEALS WITH THE PROBLEM OF THE OFFENDER WHO COMMITS CRIMES REPEATEDLY AND WHO HAS RECURRING CONTACT WITH AGENCIES ADMINISTERING JUVENILE JUSTICE, INCLUDING THE POLICE AND THE COURTS. THE DETENTION STUDY EXAMINES THE NECESSARY PROCESS OF HOLDING JUVENILES AWAITING ADJUDICATION BY THE FAMILY COURT OR REFERRAL TO ANOTHER AGENCY, AND IT FOCUSES ON THE DETENTION HOME AND THE REASONS JUVENILES CONTINUE TO STAY IN THE FACILITY, THE DURATION OF THEIR STAY, AND THE FEASIBILITY OF USING THE FACILITY ONLY TO HOLD THOSE WHO CANNOT BE REFERRED ELSEWHERE. THE STUDY ON THE YOUTH CORRECTIONAL FACILITY EXAMINES THE CONTINUING DILEMMA OF NEEDING A PROGRAM FOR THE HARDCORE DELINQUENT JUVENILE. THE REPORT EXAMINES ADMISSIONS, THE IMPACT OF JUVENILES WHO RETURN CONTINUALLY TO THE FACILITY, THE MANNER IN WHICH THESE YOUTH ARE TERMINATED AND RELEASED, AND THE SUCCESS OF THE FACILITY IN DEALING WITH THE HARDCORE REPEAT OFFENDER. FINALLY, THE JUVENILE PROBATION AND PAROLE STUDY DEALS WITH THE EFFECT OF JUVENILE PROBATION AND PAROLE ON RECIDIVISM. TABLES, A LIST OF DEFINITIONS, AND AREAS OF FURTHER STUDY ARE INCLUDED. (AUTHOR ABSTRACT MODIFIED--PRG)