CRIME SCENE SKETCHING
By
Special , \gent
URI
h6
h7C
FBI014709
ACLURM014595
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Crime Scene Sketching: The Role and Techniques of Supplementing Photographs, Lecture notes of Forensics
The importance and uses of crime scene sketches as a supplement to photographs in investigations. It covers the benefits of sketching, such as recording exact locations and relationships of evidence, refreshing memory, and assisting in questioning suspects and witnesses. The document also discusses considerations for creating effective sketches, including the level of detail, purpose, viewpoint, time limit, and weather conditions.
What you will learn
- How do crime scene sketches assist in questioning suspects and witnesses?
- How do crime scene sketches help in recording details of evidence and surroundings?
- What are some considerations for creating effective crime scene sketches?
- What are the benefits of using crime scene sketches as a supplement to photographs?
- What are some limitations to creating crime scene sketches, and how can they be addressed?
Typology: Lecture notes
2021/2022
1 / 22
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CRIME SCENE SKETCHING
By
Special , \gent URI
h
h7C
FBI
Photograph vs Sketch
nSketches do no replace photographs
nSketches supplement photographs
n Details
n Photograph: C ;reat detail
nSketch: I ,litninates unnecessary details
n Relationships between objects
n Photograph: (Arnim] by space
nSketch: No limitation
FBI
Uses or Purposes of Sketches
(contd.)
n Help in questioning suspects and witnesses
n I'lan raids and roadblocks
n Record details of-accident investigations
n I kip correlate testimony of witnesses
n I ,liminate unnecessary and confusing details
FBI
CONSIDERATIONS
- I ,et el of detail necessary (will you need a second more
prolessiolval version)
- Purpose of sketch
- V'icw (aide, elq)10ded, directional, perspective)
- Time limit
- Faivironinent and weather
- Type of measuring equipment
- I 'sc. standard symbols
- limit identifiers and words
- (^) babel evidence with the same identifiers used with photographs
and evidence collection
FBI
Rectangular Coordinates
n Works well fur
rectangular and square
rooms
n Be sure that the
measurements are
made at right (900)
IIiglcs
FBI
FBI
EVIDENCE KEY
(On separate page)
Evidence Key
Evidence Humber Cescriabon (^) Honzontal 00 lion VertkaI Posit:an
:9 (A)
l 9 (0)
9 (B)
10 (C)
1
111(E)
'13 (M)
;Grave (Center) ;Burn Pile
ace, (^) -3 R. 6.000010. Tissue (Intestine) (^) -1 R. 2.0020.m. Tissue (Intestine) (^) -2 fe 3.0000 in, Bone Fragment (Infant Skull) -3 L 2.0000 In.
18 ft. 7.0000 In, seavai (^) 281t. Oin. Hair .9 ft. 4.0000fn.
. Cloth (^) •13 fr. 6.00001n. 45 ft. 0.0000 M. Half •19 ft. 9.0000 in. lisaue (^) .130. 311. Cloth (^) .179,6.0000 N. • Body Pen (^) -129.9.00001n. Bane Fragment (Infant 56211)-53 R. Cloth (^) -99.)).00S011. Cloth in Burn Pile (^) 5 ft. 5.0000 m. -e R. 5.0000 in Burn No (^) 51, 50000in.
.168.2in. .200. fin. .299, 11n. .2eft. 2in. 2411 Om. 20I1. Sin.
. 170, 10In. I aft. 4in. 15ft. 11in. 129, 9in. -1011. 1141.
- Oin. tie 71n. 1811 4in.
- gin. 23ft. tin. 289.9m.
0 000011 (^) 0.0000 ft
.12 (0) Bone Fragments (Infant ribs 8 Oen fragments) (^) .25 0. 6.0000 N. -149. 710 •
FBI
FBI
BASELINE (with details)
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Se'GRAb a,
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FB
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17
SEPARATE PAGE
'Notes
'Measurements
Mini sketches
FBI
3- IS' ?J.
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INTERIOR DETAILS
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FBI
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BAuthoritles explore mothres of
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A nnet •laa"ta whether venal
tights groups wens Involved
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FEDERAL INVESTIOATORS iearchtho crowed nom Ms NW whom on explosive dote. doloodled Rely Relay at the hoadquarlara of Shalloawap ln eet.awneon.
Animal activists speculate on blast
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20
FBI