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The Crime Scene

The Crime Scene. bsapp.com C Hurn. Officer in charge Assistant Photographer Sketcher Master note taker Evidence person Measurer. Section leader – when a large scene must be searched – sections instead of individual team members. Crime Scene Team. Approaching a Crime Scene. bsapp.com.

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The Crime Scene

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  1. The Crime Scene bsapp.com C Hurn

  2. Officer in charge Assistant Photographer Sketcher Master note taker Evidence person Measurer Section leader – when a large scene must be searched – sections instead of individual team members Crime Scene Team

  3. Approaching a Crime Scene bsapp.com

  4. Approaching a Crime Scene • Personal Safety and the well being of victims • Preserve and Isolate the Crime Scene • Record the Crime Scene bsapp.com

  5. NO DO-OVERS !!!!!

  6. Crime Scenes Examined very Methodically

  7. The Beginning .

  8. Recording the Crime Scene • Photographs • Sketches • Notes bsapp.com

  9. Crime-Scene Sketch • Rough sketch need not be a work of art! • Graph paper is an aid to accuracy and proportion • Steel measuring tape • Compass • NO CHANGES SHOULD BE MADE TO THE ORIGINAL SKETCH AFTER INVESTIGATOR HAS LEFT THE SCENE!!!!!!!!!!!!!

  10. bsapp.com Final Sketch

  11. Notes • Match to sketch • Use a key • Quick, short, bulleted • What can you not see from the photo? bsapp.com

  12. CAUTION • KEEP IN MIND – THIS WRITTEN RECORD MAY BE THE ONLY SOURCE OF INFORMATION FOR REFRESHING MEMORY MONTHS, PERHAPS YEARS, AFTER CRIME HAS BEEN PROCESSED

  13. Photography • Evidence • Close ups • Perspectives • Multiple angles • Scene • Multiple views • Entrances • Exits • Windows bsapp.com

  14. CAUTION • Many Police Depts give their LEOs a digital camera to carry in their patrol cars. • Take photographs in overlapping segments that flow in one direction around the crime scene • Some courts object to any “extraneous items” (paper arrows, rulers) appearing in crime-scene photographs • TAKE PHOTOS BOTH WITH AND WITHOUT SUCH “EXTRANEOUS ITEMS” • TOO MANY PHOTOS IS BETTER THAN NOT ENOUGH

  15. Collecting Evidence • Victim's clothing • Fingernail scrapings • Head and pubic hairs • Blood (for typing purposes) bsapp.com

  16. Vaginal, anal, and oral swabs • Recovered bullets from the body and/or surrounding area • Hand swabs or washings from shooting victims bsapp.com

  17. Collecting Evidence Bag & Tag bsapp.com

  18. Collecting Controls • Prints • DNA Samples • Hair • Other evidence from possible suspects or victims for comparison to evidence bsapp.com

  19. Collecting Controls Do You Need a Warrant? bsapp.com

  20. ???????? • Sample Waiver • Search Warrant • Control Requisition Form

  21. EVIDENCE LOG & CHAIN OF CUSTODY

  22. Many different types of forms

  23. Evidence Log • Date evidence was received in storage • Case file number • Case title • Person from whom or place from which the item was received • Name of person who received the evidence • Complete description of evidence including identifying data such as serial number • If evidence is signed out all of above must be completed • Signature of officer in charge of evidence room

  24. ALWAYS REMEMBER • Documentation must be careful and accurate • Physical evidence collected thoroughly • Control samples taken • Evidence preserved, free from contamination, marked appropriately, logged consistently • Chain of Custody rigidly maintained

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