Crime Scene (Power Point)

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Guideline for conducting a crime scene search.1. Approach scene The direction and location you approach thescene from should cause as little disturbance tothe scene as possible.2. Secure and protect Insure that no unauthorized persons are permitted toenter the scene and insure no evidence is removedprior to being properly documented and collected.3. Preliminary surveySTOP and look at the scene, start evaluatingwhat steps you need to take.
Page 2 and 3: The student will be able to summari
Page 4 and 5: 8. Do not permit personnel to begin
Page 8 and 9: Communication, between the search p
Page 10 and 11: Determining the search method and a
Page 12 and 13: Since all crime scenes are unique i
Page 14 and 15: Strip or Line search. This method,
Page 16 and 17: Circular (spiral or concentric) sea
Page 19 and 20: Elevation Zone Search
Page 21 and 22: Some investigative tools and equipm
Page 23 and 24: Bloodstain PatternDocumentationABFO
Page 25 and 26: Trace Evidence CollectionAcetate sh
Page 27: ImpressionBowls/mixing containers.B
Page 31 and 32: Methods of conducting a preliminary
Page 33 and 34: Field notes
Page 35 and 36: Protection of a crime scene.Protect
Page 37 and 38: Once evidence has been located, rem
Page 39 and 40: Conducting a final survey of the cr
Page 41 and 42: After the Search is complete, but p
Page 43 and 44: The importance for maintaining a ca
Page 45 and 46: The importance for conducting a fol
Page 47 and 48: Sketching and Photographing
Page 49 and 50: The main reasons for using crime sc
Page 51 and 52: The crime scene sketch should inclu
Page 53 and 54: The finished sketch.a) A finished s
Page 55 and 56: D) If requested, dimensions and des
Page 58 and 59: The schematic sketch:Used to repres
Page 60 and 61: Prevalent sketch:Sketch of the gene
Page 62 and 63: Compass direction.A standard arrow
Page 64 and 65: Suitable scales for use in police w
Page 66 and 67: TitleThe title should contain data
Page 69 and 70: Rectangular CoordinatesObjects are
Page 71 and 72: Reasons for taking Crime Scene Phot
Page 73 and 74: Photographs should be taken prior t
Page 75 and 76: Photographic Log1. It is a complete
Page 77 and 78: Mid-range photographs.a. Usually ta
Page 79 and 80:
3. Centering on the results of the
Page 82 and 83:
General standards used to review th
Page 84 and 85:
The relationship between crime scen
Page 87:
10 feet from base point 1 to base p
Page 90 and 91:
The methods of classifying fingerpr
Page 92 and 93:
The only patterns usually used to d
Page 94 and 95:
Methods for identifyingFINGERPRINTS
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Types of PatternsFingerprints may b
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Identification points1. Bifurcation
Page 100 and 101:
Latent Impressions (patent fingerpr
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The quality of latent impressions c
Page 104 and 105:
Protect all areas, as best you can,
Page 106 and 107:
Dusting for Latent ImpressionsFor h
Page 108 and 109:
Powder should be used sparingly.Dis
Page 110:
Use lifting tape large enough to co
Page 113 and 114:
Ninhydrin.This chemical acts as a d
Page 115 and 116:
This solution reacts with sodium ch
Page 117 and 118:
Print development by this method de
Page 119 and 120:
In order Three to speed to four up
Page 121:
THE AFIS SYSTEMAFIS technology uses
Page 124 and 125:
First things first, make sure the p
Page 126 and 127:
Recommended equipment:Inking plateC
Page 128 and 129:
In taking rolled impressions, the s
Page 130:
Closely observe the crime scene. It
Page 133:
Be sure that you’ll be able to an
Page 136:
Marking EvidenceAnyone who handles
Page 139 and 140:
Each different itemshould be packag
Page 141 and 142:
An unfortunate side affect of these
Page 143 and 144:
LiquidsMost often encountered in ar
Page 145 and 146:
Flammable liquids and accelerants e
Page 147 and 148:
The firearm should behandled carefu
Page 149 and 150:
Note the following conditions:Physi
Page 151 and 152:
Avoid the front of revolver cylinde
Page 153 and 154:
Marking firearms.a. Don't deface a
Page 155 and 156:
When cylinders must be unloaded(1)
Page 157 and 158:
Projectile evidence (expended bulle
Page 159 and 160:
Collection and preservation of glas
Page 161 and 162:
Paint evidence.1. Collection and pr
Page 163 and 164:
Suspects clothing1. A suspect’s c
Page 165 and 166:
Most illicit drugs come in one of s
Page 167 and 168:
Stainsa. Blood is the stain found m
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3. Prints, such as latent prints an
Page 171 and 172:
Precautions that should be taken to
Page 173 and 174:
There are certain precautions, whic
Page 175 and 176:
In the case of an accidental wound,
Page 177 and 178:
Evidence stained with blood or body
Page 179 and 180:
Even after evidence has been proper
Page 181 and 182:
Safety precautions, safe work pract
Page 183 and 184:
Hazardous materials transportation.
Page 185 and 186:
ExplosivesBlasting caps, unstableex
Page 187 and 188:
Preserving evidence during foul wea
Page 189 and 190:
DNA (deoxyribonucleic acid)- the mo
Page 191 and 192:
Important considerations of DNA eva
Page 193 and 194:
Blood examinations cannot determine
Page 195 and 196:
Methods of collecting known bloodsa
Page 197 and 198:
Dried blood on aperson1. Absorb sus
Page 199 and 200:
BloodstainsAir-dry wet bloodstained
Page 201 and 202:
When possible, cut a large sample o
Page 203 and 204:
Blood examination request letterA b
Page 205 and 206:
Saliva on cigarette butts1. Pick up
Page 207 and 208:
Saliva on envelopes and stamps1. Pi
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Dry saliva- or urine-stained object
Page 211 and 212:
Semen stainsLiquid semen1. Absorb s
Page 213 and 214:
Semen stains from immovable object1
Page 215 and 216:
2. Refrigerate samples and submit t
Page 217 and 218:
Hairs in the hand of the victims1.
Page 219 and 220:
Methods of collecting Tissue, Bone,
Page 221 and 222:
Place tissue samples in a clean, ai
Page 223 and 224:
Socks1. Socks worn by a homicide vi
Page 225 and 226:
WeaponsWeapons recovered at a crime
Page 227 and 228:
Considerations of documenting, coll
Page 229 and 230:
G. It may be necessary to use a var
Page 231 and 232:
Search the burglarized structure to
Page 233 and 234:
Checklist for burglary investigatio
Page 235 and 236:
A. Response to a robbery crime scen
Page 237 and 238:
Checklist for robbery and aggravate
Page 239 and 240:
Investigating an alleged physical a
Page 241 and 242:
Checklist for an assault, or aggrav
Page 243 and 244:
3. Note and document the victim's c
Page 245 and 246:
Medical treatment (specimens)a. Adv
Page 247 and 248:
(3) Hair from the victim. Request a
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Crime Scene (Power Point)

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