The ARMY FIELD MANUAL ... which is very complete for your average Intelligence troop/officer type interrogator.
Want a copy?
Here ya go! :P
http://www.globalsecurity.org/intell/library/policy/army/fm/fm34-52/FM 34-52
INTELLIGENCE INTERROGATIONTable of Contents
PREFACE
CHAPTER 1 INTERROGATION AND THE INTERROGATOR
PRINCIPLES OF INTERROGATION
SOURCES OF INFORMATION
PERSONAL QUALITIES
SPECIALIZED SKILLS AND KNOWLEDGE
CHAPTER 2 ROLE OF THE INTERROGATOR
COMMANDER'S MISSION UNDER AIR-LAND BATTLE
MILITARY INTELLIGENCE ADN INTELLIGENCE PREPARATION OF THE BATTLEFIELD
INTELLIGENCE AND ELECTRONIC WARFARE OPERATIONS
COUNTERINTELLIGENCE
ELECTRONIC WARFARE
CAPABILITIES AND LIMITATIONS OF INTERROGATORS
CHAPTER 3 INTERROGATION PROCESS
SCREENING SOURCES
INTERROGATING PROCEDURES
CHAPTER 4 PROCESSING CAPTURED ENEMY DOCUMENTS
DOCUMENT HANDLING
DOCUMENT EXPLOITATION
EVACUATION PROCEDURES
DOCUMENTS CAPTURED WITH A SOURCE
CHAPTER 5 DIRECT AND SUPERVISE INTERROGATION OPERATIONS
ADVICE AND ASSISTANCE
PREPARE AND MOVE TO THE DEPLOYMENT SITE
SUPERVISE THE INTERROGATION PROCESS
SUPERVISE THE CED PROCESSING CYCLE
SUPERVISE ADMINISTRATIVE TASKS
CHAPTER 6 OPERATIONAL ENVIRONMENT
COMMAND RELATIONSHIPS
TASKING RELATIONSHIPS
SUPPORT RELATIONSHIPS
INTERROGATOR TRAINING
CHAPTER 7 STRATEGIC DEBRIEFING
DUTIES AND RESPONSIBILITIES
NOTIFICATION
PLANNING AND PREPARATION
CONTACT AND INTERVIEW
COMPONENTS OF STRATEGIC INTELLIGENCE
INTELLIGENCE CYCLE
CHAPTER 8 JOINT INTERROGATION FACILITIES
FORMATION
USE
CHAPTER 9 LOW INTENSITY CONFLICT
TERMINOLOGY
OPERATIONAL CONCEPT FOR LOW-INTENSITY CONFLICT
INTERROGATION SUPPORT TO LOW-INTENSITY CONFLICT
THE SOURCE
INTERROGATION OPERATIONSAPPENDIX A STANAG EXTRACTS
APPENDIX B SAMPLE DETAINEE PERSONNEL RECORD
APPENDIX C SAMPLE ENEMY PRISONER OF WAR INDENTITY CARD
APPENDIX D SAMPLE ENEMY PRISONER OF WAR CAPTIVE TAG
APPENDIX E SAMPLE JINTACCS SALUTE PREPORT FORMAT AND REPORT
APPENDIX F SAMPLE SCREENING REPORT FORMAT AND REPORT
APPENDIX G SAMPLE TACTICAL INTERROGATION REPORT FORMAT AND REPORT
APPENDIX H APPROACHES
APPENDIX I INTERROGATION GUIDES
APPENDIX J 1949 GENEVA CONVENTIONS
GLOSSARY
REFERENCES
AUTHORIZATION LETTER