Forensic Services Guide Washington State Patrol Forensic Laboratory Services Bureau 3000-210-463 September 2015 Washington State Patrol Forensic Laboratory Services Bureau Forensic Services Guide TABLE OF CONTENTS TABLE OF CONTENTS .................................................................................................. 2 PREFACE ....................................................................................................................... 5 INTRODUCTION ............................................................................................................. 6 Forensic Laboratory Services Bureau .......................................................................... 6 CRIME LABORATORY DIVISION ................................................................................... 7 CRIME LABORATORIES and SERVICES ...................................................................... 8 Crime Laboratory Division ........................................................................................... 8 Laboratories ................................................................................................................ 8 CRIME LAB AREAS OF RESPONSIBILITY .................................................................. 11 PROCEDURES for EVIDENCE SUBMISSION .............................................................. 12 Shipping .................................................................................................................... 12 Personal Delivery ...................................................................................................... 13 Request for Laboratory Examination (form 3000-210-005) ........................................ 13 GENERAL GUIDELINES for the COLLECTION, PRESERVATION, and PACKAGING of PHYSICAL EVIDENCE ................................................................................................. 15 Precautions ............................................................................................................... 15 General Guidelines .................................................................................................... 15 HOW TO MAKE A PAPERFOLD................................................................................... 18 CRIME SCENE RESPONSE TEAM .............................................................................. 19 Introduction ............................................................................................................... 19 Goals and Objectives ................................................................................................ 19 Callout Criteria........................................................................................................... 19 Callout Procedure ...................................................................................................... 19 Relationship to Requesting Agency ........................................................................... 20 BIOLOGICAL EVIDENCE ............................................................................................. 22 Introduction ............................................................................................................... 22 Case Acceptance Guidelines for Biological Evidence ................................................ 23 Technology Utilized ................................................................................................... 24 Y-STR ....................................................................................................................... 25 Biological Evidence Universal Precautions ................................................................ 26 Collection, Preservation, and Shipping of Biological Evidence ................................... 26 Reference/Known Samples ....................................................................................... 29 Return of Items .......................................................................................................... 31 CODIS PROGRAM ....................................................................................................... 32 The Combined DNA Index System (CODIS) Program ............................................... 32 MATERIALS ANALYSIS ............................................................................................... 34 TRACE EVIDENCE ....................................................................................................... 34 Introduction ............................................................................................................... 34 Precautions ............................................................................................................... 39 Hair ........................................................................................................................... 40 Glass ......................................................................................................................... 41 Clothing and Fibers ................................................................................................... 43 Paint and Other Protective Coatings .......................................................................... 44 Vehicle Lamp Evidence ............................................................................................. 46 Impression Evidence ................................................................................................. 47 Physical Match .......................................................................................................... 50 Soil and Geological Materials .................................................................................... 51 Building Materials ...................................................................................................... 53 WSP 3000-210-463 Page 2 of 113 Revision September 22, 2015 Forensic Services Guide Approved by CLD Manager All Printed Copies Uncontrolled Revision 8 Washington State Patrol Forensic Laboratory Services Bureau Forensic Services Guide Botanicals .................................................................................................................. 54 Food and Vomit ......................................................................................................... 55 Tape .......................................................................................................................... 56 Miscellaneous Materials ............................................................................................ 57 MATERIALS ANALYSIS ............................................................................................... 58 CHEMICAL ANALYSIS ................................................................................................. 58 Controlled Substances .............................................................................................. 58 Poisons/Toxins .......................................................................................................... 63 Solvents, Inhalants, and General Unknowns ............................................................. 63 Explosives ................................................................................................................. 64 CLANDESTINE LABORATORY ANALYSIS .................................................................. 67 Contact the Clandestine Lab Team ........................................................................... 67 Collection of Evidence at a Clandestine Laboratory ................................................... 68 Special Note on Handling Anhydrous Ammonia ........................................................ 68 FIRE DEBRIS ANALYSIS ............................................................................................. 69 Introduction ............................................................................................................... 69 Analytical Process ..................................................................................................... 69 Precautions ............................................................................................................... 70 Significance ............................................................................................................... 70 Collection .................................................................................................................. 70 Packaging ................................................................................................................. 72 Controls/Comparison ................................................................................................. 73 Fire Debris Packaging Products ................................................................................ 73 FIREARMS EVIDENCE ................................................................................................ 74 Introduction ............................................................................................................... 74 Precautions ............................................................................................................... 74 Significance ............................................................................................................... 74 Methods Used ........................................................................................................... 75 Conclusions ..............................................................................................................