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JS_112__Crime_Scene_Procedures_020810

JS_112__Crime_Scene_Procedures_020810 - JS 112 Crime Scene...

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JS 112- Crime Scene Procedures I. Pre class activities a. Quiz b. Announcements and Assignments c. Acknowledgements I. Crime Scene Management, First Responders and Processing the Crime- Fisher Ch 2 and Ch 5 a. Management considerations- Information, Person power, Technology and Logistics b. Role of the First Responder- Before arriving, Arriving c. Secure and Isolate- Multilevel security Walk through d. Recording the scene (CSI exercise) e. Communication f. Legal Considerations and Safety
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Announcements Next time- John Jermaine MS. Chemist ATFE Guns, Drugs and Bombs, Investigative Chemistry Looking ahead- Weds 03/01/10- Student led reviews- E mail summary by 02/28/10 by 1200 noon Monday 03/03/10- Exam I Assignment- Read Chapters 2 and 3
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Elements of Crime Scene Management Combined power of crime scenes , physical evidence, records and witnesses Use of teamwork , advanced investigative skills, ability to process the crime scene properly, recognizing, collecting and preserving all relevant physical evidence Effectiveness of crime scene functions are only as good as management that supports those functions
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Components of an effective crime scene management system Information Person power Technology Logistics
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Information management Victim- background Actions and whereabouts Belongings accounted for-anything missing Locate family, friends and associates for recent events and how the victim got to the scene Motor vehicle registry Extended Victim Background Business, family and personal associates identified and interviewed Habitual behaviors Financial affairs-credit cards, bank accounts, telephone records Residence and personal belongings inventoried for anything missing or out of the “norm”
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Information Management Witnesses Interactions with victim near time of death Clothing, food eaten, trace material foreign biological material or drugs taken Find physical evidence to corroborate witness statements Potential Witnesses Direct witness First responding officer – witnesses and potential suspects, transient or conditional evidence, eg position of the door or on/off light status General public Informants
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Management of person power Allocation of personnel and training Time, talent, resources Scene documentation Photography Videotaping Sketching Search methods Recognizing, collecting and preserving physical evidence
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Information Management Crime scene/evidence Documentation- Photography,sketches, notes Physical evidence-any evidence/object that can provide useful information for investigators in solving the crime Transient evidence- eg odors, temperatures, markings Conditional evidence- lighting conditions, smoke or fire, precise location of specific pieces of evidence Pattern evidence-Imprints, indentations, striations, markings, fractures, blood spatter, glass fracture, tire or
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