91 Multiple choice questions
- fingerprints,tire tracks, footwear
impressions,footprints, bite marks, tool marks
- dental evidence in the form of bite mark impressions that can lead to the identity of the
- suspect, witness, or victim of a crime to support taking a
- submitting them.
- entails dividing the area into a number of wedge-shaped
sections, which are usually searched using the strip/line search pattern. Use this method for extremely large search areas.
- clothing, carpet, rope, automobile carpeting, upholstery, or other common articles.
- refuse photographing injuries such as scratches from the
victim or blood evidence.
- common origin and a relationship between the victim, the suspect, and the crime scene.
- damaged surface and submit it to the laboratory for comparison with the suspect's
- air-dried, packaged in breathable containers such as paper bags, or both.
- room by room, the size and relationship of
entrances, exits, and contents.
- bite marks
- murder, aggravated battery, sexual assault, hit-andrun,
and burglary scenes.
- checks, bank statements, address books, wire transfers, credit cards, phone bills, photographs
or cameras, photo copies
- provide useful evidence in solving crimes such as a hit-and-run crash.
- blood, semen, saliva, bones, teeth, body tissues, hair, DNA,
- weapons, projectiles, gunshot
cases, tool marks, database
- leave or take away some sort of evidence.
- deteriorate to a point where they have no evidentiary value.
- distinct marks on surfaces.
- allow fingerprint analysts to distinguish between prints belonging to either the victims
and witnesses or the possible suspects. To make this distinction, take inked fingerprints from innocent parties,
who may have been at the crime scene, in order to eliminate their prints from the scene.
- attempt to remove it.
- bare hands.
- body fluids and, if needed, conduct further
testing using DNA analysis.
- any ammunition.
a MOLDED or IMBEDDED fingerprint created by touching an impressionable
surface, such as wet paint or mud that you can easily see.
- "Every contact leaves a trace." Referred to as
Locard's Exchange Principle, this contends that everyone who enters a crime scene will both bring something into and take something from it.
- are among the most valuable types of physical evidence and one of the most common types
of evidence you will recover at a crime scene. Although generally invisible to the naked eye, latent prints result
from body residues left behind when the friction ridges of the hands or feet make contact with a surface.
density, thickness, and type of glass (tempered window, non-tempered,
headlight, and bottle) to match and identify its origin.
- another location.
- chamber or cylinder
- crime scene.
- side of the glass the suspect stood, thus establishing the suspect's entry or exit path.
- clothes of the victim and the assailant.
to document the relative positions of evidence items in the crime
scene. Place evidence markers next to each piece of evidence within the
crime scene after initially photographing the scene and developing your
- blood alcohol
- separate container, then place them both in the firearm or evidence box.
- photograph of a person
the process of microscopically analyzing trace evidence, such as paint,
glass, and cloth fibers, to determine a possible source or origin.
identify and compare other materials such as textile fibers, plastics, duct tape, lamp filaments, and fractured, torn, or cut items.
- compass direction, relevant items of physical evidence
along with the location of such items indicated by measurements from at least two fixed points or other
methods, and a legend of the symbols used to identify objects or points of interest on the sketch.
- as soon as possible.
- firearms for function and safety.
- bruises, lacerations, broken bones, gunshot wounds, and trace or transfer evidence.
- paint residue
- often used indoors; a variation of the strip/line search
pattern. Searchers overlap a series of lanes in a cross pattern, making the search
more methodical and thorough
that could be transferred during the commission of a violent crime.
These trace materials include human hair, animal hair, textile fibers
and fabric, rope, feathers, soil, glass, and building materials.
of Alcohol, Tobacco, Firearms, and Explosives (ATF) to determine the
original owner of the firearm or the firearms dealer.
- contaminate the person's body, shoes,
- change gloves between
collecting each piece of evidence collected for DNA analysis.
- "not to scale"
unless you are prepared to testify that every item is precisely drawn to scale on the sketch.
transferred from the friction ridges on fingers by a FOREIGN SUBSTANCE
(not a body residue), like blood, paint, or dirt, and are
- semen evidence.
- evidence in many cases.
- cigarette butts, drinking straws, soda and beer
cans, masks, bottles, etc. Bite marks may also contain saliva.
- evidence from contamination and you from exposure to dangerous substances.
to prevent leaving your own latent prints. Take care to avoid smudging
or smearing existing latent prints when handling and packaging evidence.
- fingerprints, shoe prints, blood, fibers, hair, tool marks, paint scratches, broken glass,
bodily fluids, controlled substances, electronics equipment and computers, firearms,
broken or damaged materials, tire tracks, documents, and bones.
- strip/line search pattern: grid search pattern: pie/wheel search pattern: spiral search pattern: zone/quadrant search pattern:
- carefully examine it to identify the manufacturer, country of origin, serial number, model number, and caliber.
- running the firearm serial number through FCIC/NCIC database
- dusting them with one of several types of powder, which
develops the print and makes it visible. Use a fine brush to apply dust to the surface on which someone placed a
print. Lift a found print from its original surface with clear or frosted tape, then attach it to a small note card.
cases, and shotgun shells to determine if the suspect's weapon fired
them. They examine bullets recovered from a crime scene to identify the
make and type of weapon involved. An analyst may also examine the crime
scene for the presence of gunpowder and shot pellet spread to determine
firing distance. Analysts can identify tool marks, aftermarket
modifications, and serial number restoration
- separate container.
- wood, tile, paper, or paint, or in dust,
blood, or grease
- blood, saliva, urine, semen, perspiration, vaginal
secretions, feces, or vomit
- into a mark
- spot fiber evidence.
- snag fibers during a subject's entry into or exit from a building.
- computers,cell phones, PDA, thumb drives, external hard
drives, CDs, DVDs,VHS tapes, digital cameras, answering
machines,digital recording devices
- hairs,fibers, clothing,paint chips,
transfer evidence, glass, wood, soil, dirt
- usually used outside by one person. The searcher begins
at a certain point and walks in increasingly larger circles to the outermost boundary of the search area.
- Patent prints, plastic print, Latent prints,
- weapon, the direction of the attack, and the relative size of the attacker.
- usually used outside by several people. Divide the
search area into lanes. Have one or more people search each lane by moving in both directions, examining all areas.
- "one shot" opportunity and should be treated as such.
- people!! Use a scale or identifier to document the extent of the injury.
- 1. Wear gloves to avoid contaminating the area with your own fingerprints. Be careful not to wipe possible
prints off the surface.
2. Hold a flashlight at an angle, and look for obvious signs of a latent print.
3. Take your brush and lightly dab into the powder once you find a target area.
4. Tap and twirl the excess powder off the brush in the jar of powder. Use it sparingly because it tends to
get on everything. It is better to use too little than too much.
5. Lightly brush from side to side, or swirl the brush, on the target area. If the powder adhered to the print
is too thick, brush off the excess powder with a clean brush and adjust the amount of powder.
6. When you find a print, apply the tape in the following manner:
a. Place a suitable fingerprint card on a flat surface nearby so that it is ready for the print you lift with
b. Turn under the end of the lifting tape to form a tab.
c. Extend the tape to a distance long enough to cover the print.
d. Place the rolled end of the tape just above the latent print, but keep it off the print.
e. Make sure that you do not trap foreign matter or air bubbles under the tape.
f. Smooth from the tabbed end of the tape back toward the rolled end or vice versa. Use your finger,
pen, or another object to smooth out the tape and release any trapped air. It is the same basic
process as putting a decal on a window. With time and practice, you will develop your own
technique for applying the tape.
7. Slowly lift the tape containing the developed prints from both ends, being careful not to touch the tape
to another surface, such as your gloves.
8. Carefully place the tape on the fingerprint card in the same way that you placed the tape over the latent
print. Place the print in the designated place on the correct side of the card.
9. On the back of the fingerprint print card, record the date, case number, the location within the crime
scene where you retrieved the fingerprint and any other information your agency's policies and
procedures require. Be careful not to damage the print.
10. Follow your agency policies and procedures to submit print evidence.
- seat belts, airbag, steering wheel, and other components for fibers.
- used for vehicle searches, outdoors, or a large
area. Divide the area into four different sections and search each using one of the patterns above.
- same gender as the victim observe and photograph the injuries. It may be prudent to have a witness present
when photographing these types of injuries.
- determine what evidence at the scene belongs to the criminal and not to the victims or witnesses.
- deposition or trial.
- evidence box;
- NCIC/FCIC database check on the firearm.
- that they have all been reduced or enlarged by a certain
amount relative to each other.
- strong evidence in court.