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Criminal Investigation Ch1-7

by: Erika Briggs

Criminal Investigation Ch1-7 CRIM435

Marketplace > Indiana State University > CRIM435 > Criminal Investigation Ch1 7
Erika Briggs

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This is a simple study guide I made for the next test.
Criminal Investigation
Christian Gallagher
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This 3 page Study Guide was uploaded by Erika Briggs on Friday January 29, 2016. The Study Guide belongs to CRIM435 at Indiana State University taught by Christian Gallagher in Spring 2016. Since its upload, it has received 59 views.


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Date Created: 01/29/16
Study Guide Chapters 1-7 Criminal Investigation Chapter 1 Vocab Corpus Delicti- evidence that a crime was committed Intent- accused knew they were doing something wrong 3 I’s Information, Interrogation and Instrumentation Ethics of an investigation create a value of justice Phases of the Investigation  Identifying the perpetrators,  tracking and locating them  developing the facts to prove guilt in court Chapter 2 Investigator’s Report  notebook needed per case  chronological order  effectiveness and quality Photographs and Sketches also used Notes should be complete and clear Chapter 3 Crime Scene Procedures Preliminary- secure the area Assignment of Duties (ex photographer photographs scene) Mechanics of the Search  Strip method-area is blocked out and three searchers proceed slowly at the same pace along paths parallel to one another  Spiral Method- start at the center of the room and spin outward looking for evidence  Zone method- one searcher is assigned per quadrant  Wheel Method- area is considered to be circular and searchers begin at the parameter and proceed to the center along the radii or spokes Chapter 4 Fingerprints Vocab Lifting- physically removing latent fingerprints from their original surface Refractive index- measurement of the bending of light as it passes through a substance Sole Prints and latent prints Developing the print using  Powder  -  Small Particle Reagent  Chemical Development  Fuming  Spraying or Immersion  Alternative Light Source Characteristics of Fingerprints  Arches, loops, whorls Chapter 5 Impressions, Trace evidence and Firearms Vocab Casting- method of recording impression evidence by reproducing its three dimensional form Items that can make impressions  Footwear  Tires  Tools Photograph all impressions before doing anything else Chemical Etching Bite Marks Broken Glass Determine the Direction of Impact -radial fractures occur first on the side opposite the impact Bullet holes in glass Hair Cuticle- outer covering Medulla- innermost layer Cortex- middle layer that contains pigment cells Firearms Description of firearm  Caliber  Make  Model  Type  Serial number  Finish Chapter 6 Care of Evidence Corpus delicti consist of objects or substances that tend to establish a crime has been committed Procedures must be followed for evidence to hold up in court. Must protect and Preserve evidence Page 144 – FBI Recommendation for Evidence Collection Chapter 7 Observation and Identification Senses – touch, taste, smell, hear Portrait parle- verbal description and used as unreliable aid Identification by Witness Computer assisted Identification Identification of Suspect  Line ups  Show ups  Photographic Line up The Fifth Amendment- guarantees no person shall be compelled in any criminal case to be a witness against himself


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