TODAY'S LAW ENFORCEMENT OFFICER MUST KNOW A GREAT MANY THINGS TO FUNCTION EFFECTIVELY IN OUR CHANGING SOCIETY. NEW LAWS, COURT DECISIONS, IMPROVED PROCEDURES AND TECHNIQUES ARE BEING ADDED CONTINUALLY TO THE ALREADY LARGE AMOUNT OF INFORMATION HE MUST HAVE AT HIS DISPOSAL. THIS HANDBOOK PROVIDES A HANDY SOURCE OF REFERENCE. IN THE LOOSE LEAF FORM, AS CHANGES OCCUR IT WILL BE POSSIBLE TO SUPPLY EACH USER OF THIS HANDBOOK WITH APPROPRIATE REPLACEMENT PAGES TO KEEP THE BOOK CURRENT. TOPICS COVERED INCLUDE POLICE CITIZEN RELATIONSHIP, JURISDICTION AND LEGAL AUTHORITY, CRIMINAL PROCEDURE, STATE AND FEDERAL-CRIMINAL OFFENSES, EVIDENCE, INTERROGATIONS, SEARCH AND SEIZURE, AND IDENTIFICATION AND STATISTICS. (AUTHOR ABSTRACT MODIFIED)