Robbie Scott, Mary McAllister, Taylor Price
Zaire Smith, Breyanna Williams
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The first officer to arrive at the scene of a
crime is responsible for:
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securing crime scene
providing medical assistance
arresting any perpetrators
excluding any unauthorized people from the scene
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Scene should be completely recorded before
anything is moved
Scene can (and should) be recorded through
◦ photography
◦ sketching
◦ notes
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overviews
close-ups
◦ rulers should be held next to items whose sizes
must be recorded
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rough sketch
◦ at scene
◦ distances and positions of items
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finished sketch
◦ precise
◦ drawn to scale
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detailed description of scene
location, time, and by whom an item was
discovered
how items are packaged
log of items discovered
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set boundaries around scene
establish entry and exit of perpetrator
establish strategy for the examination of the
scene
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thorough and systematic
◦ depends on size of scene and locale
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investigator must not overlook any evidence,
regardless of size or relation to crime
items at scene must be sent to lab for
processing and testing
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each item must be packaged separately
forceps and other tools must be used to pick
up items
gloves MUST be worn at all times to prevent
contamination of evidence
pill bottles and manila folders can be used to
store trace evidence
manila envelopes, paper bags, or wrapping
paper must be used to store any bloodstained
evidence to prevent the growth of mold
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any items found at the scene must be sent to the
lab for testing
items can include
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clothing
fingernail scrapings
hairs and fibers
blood
swabs (in sex related crimes)
bullets and casings
the body (with permission from the family) must
also be sent to the morgue for an autopsy in
search of any other evidence on the body
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must be established whenever evidence
changes possession
log must be kept for a record of who has the
evidence and where it is located
when evidence is not being tested or used, it
must be kept in storage
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reference samples (hair, blood, saliva, etc.)
must be collected from anyone found at
scene to eliminate suspects
reference samples of solids and liquids
located nearby should be collected as well
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Team Leader
Photographer and Photographic log recorder
Sketch Preparer
Evidence Recorder/ Evidence Recovery
personnel
Specialists
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Assume Control- make sure the crime scene is
secure and that they use appropriate protection
at the scene
Conduct Initial Walkthrough- preliminary survey
Designate assignments for team members
Create a command post location
Coordinate with other law enforcement agencies
Make sure there is the right supplies and
equipment available to team members
Control the access to the crime scene
Make sure everyone is on task
Release the scene after a final survey
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Photograph the entire area
Photograph victims, crowd, and people
Photograph all evidence
Photograph all fingerprints and impressions
Prepare photographic log and sketch
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Diagram the crime scene
Create labels for evidence
Sketch evidence
Provide any assistance if needed
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Describe evidence and its surroundings
Sign and date evidence container
Store evidence properly
Use protective equipment when in contact
with evidence
Expertise outside the Agency
Ex:
-Anthropologist
-Blood Pattern Analyst
-Bomb Technician
-Criminalist
-Engineer
-Entomologist
-Medical Examiner
-Odontologist
-Surveyor
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http://www.crime-sceneinvestigator.net/respon2.html
http://www.google.com/imghp?hl=en&tab=
wi
*All items must be kept safe and readily available during
 Markers (business
 Bindle paper
investigation:
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Biohazard bags
Consent/search forms
Crime scene barricade
tape
First-aid kit
Flares
Flashlight and extra
batteries
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cards, chalk, spray
paint or some other
marker to place by
noted evidence items)
Notebook
Paper bags
Personal protective
equipment (gloves,
booties, hair covering,
overalls and mask).
*All
items must be kept safe and readily available during
 Bindle paper.
investigation:
 Biohazard bags.
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Bodily fluid collection kit (sterile
swabs, distilled water, —
optional presumptive tests and
sterile packaging that allows the
swabs to air dry).
Camera (plus memory cards,
back up battery, remote flash,
tripod and remote cord).
Evidence seals/tape.
Flashlight(s) with extra batteries.
Footwear casting materials.
Graph paper and pencils, small
ruler or straight edge.
Latent print kit.
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Measuring devices (e.g,
measuring wheel, tape measures
of varying lengths).
Multifunction utility tool.
Notebook.
Paper bags (various sizes).
Permanent markers.
Personal protective equipment
(e.g., gloves, booties, hair
covering, overalls and mask).
Placards.
Plastic resealable bags (various
sizes)
Scales for photography.
Spray paint, chalk, etc.
Syringe/knife tubes.
Tweezers(disposable).
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Audio recorder
Biohazard labels
Bloodstain pattern examination kit
Business cards
Backup camera
Chalk
Chemical enhancement supplies
Cutting instruments (knives, box cutter, scalpel,
scissors)
Directional marker/compass
Disinfectant
Distilled water
Entomology (insect) collection kit
Evidence collection containers (e.g., jars, paper
bags, resealable plastic bags, metal paint style
cans)
Evidence identifiers [opens in pop-up window]
Evidence seals/tape
Extension cords
Fingerprint ink pad and pint cards for elimination
prints
Flags (surveyor type) for marking evidence and
setting up search patterns
Forensic light source (alternate light source, UV
lamp/laser, goggles)
Generator
Gunshot residue kit
High-intensity lights
Labels
Laser trajectory kit
Magnifying glass
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Maps
Marker stickers such as numbers, letters, arrows, scales
Marking paint/snow wax
Metal detector
Mirror
Nail clippers and orange peeler (for collecting debris under
suspect fingernails)
Phone listing (important numbers)
Pocket knife
Presumptive blood test supplies
Privacy screens
Protrusion rod set
Rakes
Razor blades or knife (knife must have blades that can be
broken off after each use)
Reflective vest
Refrigeration or cooling unit
Respirators with filters
Roll of string
Rubber bands
Screen sifters
Sexual assault evidence collection kit (for victim and suspect)
Shoe print lifting equipment
Tarps to protect evidence from the weather
Templates (scene and human)
Thermometer
Tool kit
Traffic cones
Trajectory rods
Waterless hand wash (towelette with germicide)
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Bindle.
Coin envelopes.
Disposable scalpels.
Distilled water.
Ethanol.
Evidence identifiers.
Latex gloves.
Photographic ruler (ABFO
scales).
Presumptive chemicals.
Sterile gauze.
Sterile swabs.
Test tubes/test tube rack.
Blood Collection Kit
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ABFO scales.
Calculator.
Laser pointer.
Permanent markers.
Protractor.
String.
Tape.
Bloodstain Pattern
Documentation Kit
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Cones/markers.
Evidence identifiers.
Metal detectors.
Paintbrushes.
Shovels/trowels.
Sifting screens.
String.
Weights.
Wooden/metal stakes.
Excavation Kit
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Black and white film.
Brushes.
Chemical enhancement
supplies.
Cyanoacrylate (super
glue) wand/packets.
Flashlight.
Forensic light source.
Lift cards.
Lift tape.
Measurement scales.
One-to-one camera.
Powders.
Fingerprint Kit
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Impression
Bowls/mixing containers.
Boxes.
Dental stone (die stone).
Evidence identifiers.
Measurement scales.
Permanent markers.
Snow print wax.
Water.
Impression Kit
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Casting materials (casting
material, distilled water if
needed for casting material,
casting frames, mixing bowl
if needed for casting
material, polymer type
casting material with
various size spreader tips.)
Chemical enhancement
supplies.
Electrostatic dust lifter.
Gel lifter.
Wide format lift tape.
Pattern Print Lifter Kit
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Acetate sheet protectors.
Bindle paper.
Clear tape/adhesive lift.
Electrostatic dust lifter.
Flashlight (oblique
lighting).
Forceps/tweezers.
Glass vials.
Slides and slide mailers.
Trace evidence vacuum
with disposable
collection filters.
Trace Evidence
Collection Kit
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Calculator.
Canned smoke.
Dummy.
Laser.
Mirror.
Protractor.
String.
Trajectory rods.
Trajectory Kit
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Crime scene: Any physical
location in which a crime has
occurred or is suspected of
having occurred.
Primary crime scene: The
original location of a crime or
accident.
Secondary crime scene: An
alternate location where
additional evidence may be
found.
Suspect: Person thought to be
capable of committing a crime.
Accomplice: Person associated
with someone suspected of
committing a crime.
Alibi: Statement of where a
person was at the time the
crime was committed.
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Testimonial evidence: includes
oral or written statements
given to police as well as court
testimony by people who
witnessed an event.
Physical evidence: refers to any
material items that would be
present at the crime scene, on
the victims, or found in a
suspect’s possession.
Trace evidence: refers to
physical evidence that is found
in small but measurable
amounts, such as strands of
hair, fibers, or skin cells.
Drug Chemistry: Determines
the presence of controlled
substances and the
identification of marijuana
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Microscopy: Microscopic
identification and comparison of
evidence, such as hairs, fibers,
woods, soils, building materials,
insulation and other materials.
Biology/DNA: Analysis of body fluids
and dried stains such as blood,
semen, and saliva.
Toxicology: Tests body fluids and
tissues to determine the presence of
drugs and poisons.
Latent Prints: Identification and
comparison of fingerprints or other
hidden impressions from sources like
feet, shoes, ears, lips or the tread on
vehicle tires.
Ballistics (Firearms): Study of bullets
and ammunition through the
comparison of fired bullets,
cartridges, guns, and gunpowder
patterns on people and objects.
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Toolmarks: Examines marks left by
tools on objects at a crime scene or
on a victim, such as a hammer used
to break a door or a screwdriver used
to pick a lock.
Questioned Documents: Examination
of documents to compare
handwriting, ink, paper, writing
instruments, printers, and other
characteristics that would help to
identify its origin.
Trace Chemistry: Identification and
comparison of materials from fires,
explosions, paints, and glass.
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http://www.myteacherpages.com/webpages/
mri/science.cfm?subpage=803236
http://www.nij.gov/topics/lawenforcement/investigations/crimescene/guides/equipment-csi.htm