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Law > Collection and Preservation of Evidence > Flashcards

Collection and Preservation of Evidence Flashcards

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1
Q

How should blood be stored

A

In a fridge

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2
Q

How should urine be stored

A

Frozen

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3
Q

When collecting a biological specimen, what piece of info needs to be in the item description?

A

The persons name whom it was collected from

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4
Q

What are the preferred sample choices when collecting biological specimens for alcohol?

A

Blood

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5
Q

what are the preferred sample choices when collecting biological specimens for drugs?

A

Urine

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6
Q

What needs to be documented when collecting a firearm?

A

-A full description including the make, model, caliber, type, and serial number

-Position of the hammer, cylinder, and safety

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7
Q

What type of packaging should fire debris be placed in?

A

Lined paint cans

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8
Q

How should marijuana be documented in your narrative and on the evidence package?

A

“Green leafy substance”
“green plant material”

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9
Q

what kind of packaging should biological evidence not be placed into?

A

Plastic bags

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10
Q

How should wet items be handled?

A

Fully air dried

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11
Q

What are examples of biological evidence?

A

Blood, urine, saliva, semen, etc

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12
Q

What is chain of custody?

A

Chronological documentation
of the seizure, custody, control, and transfer of evidence

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13
Q

When should hazard labels be used?

A

For fentanyl, needles, acid, drugs, blood

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14
Q

What is cross-contamination?

A

Two items of evidence make contact

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15
Q

What are reasons we seal evidence packaging?

A

Preserve it, prevent contamination, prevent tampering

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16
Q

How much extra room should there be in evidence packaging?

A

Enough room where the evidence tech can open and reseal it

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17
Q

Definition of Evidence

A

-Probative value to prove or disprove a fact

-Can be used in a criminal or civil case

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18
Q

Definition of Property

A

-Items that do not have evidentiary value
-Found, safekeeping or destruction

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19
Q

Types of evidence

A

-Biology
-Digital/electronics
-Fire debris
-Firearms
-Impression evidence
-Drugs
-Questioned documents
-Toxicology
-Trace
-weapons

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20
Q

External packaging includes?

A

Paper envelope, paper sack, cardboard box, heat seal plastic, metal can

21
Q

Internal packaging includes

A

-Heat seal/zipper top baggie (drugs)
-Screw top vial (liquids)
-Syringe tubes (sharps)
-Small envelopes/bindles (trace)
-Signal-blocking pouches (digital/electronics

22
Q

When swabbing dry blood you should…

A

Moisten the two swabs with distilled water

23
Q

Packaging evidence should be used to…

A

-Prevent cross-contamination
-Prevent loss or unintentional obliteration

24
Q

Evidence seals prevent-

A

-Contamination
-Cross-contamination
-Loss of evidence
-Tampering of evidence

25
Q

Always use appropriate _____ when handling evidence

A

PPE
personal protective equipment

26
Q

True or False- All biological evidence must be packaged in internal and external packaging

A

True

27
Q

If biological evidence is being submitted both for biological and latent processing you should store it at?

A

Room temp

28
Q

I.C. title 67 chapter 29 mandates?

A

-How sexual assault kits will be handled, processed, and restrained.

29
Q

How should you swab a hand?

A

-Use one set of swabs for one hand
-be sure to get under the fingernail

30
Q

Condoms that contain fluids should be packaged to…

A

Preserve potential DNA on the interior and exterior of the condom. After drying, package in doubled paper envelopes/bags

31
Q

Fetal tissue must be…

A

separated from other tissue, placed in an airtight plastic container, and stored frozen. do not submit without prior notification

32
Q

What is the CODIS database?

A

-( Combined DNA Index System)
-Contains convict offender samples(all felons in ID) , samples of unknown subjects, and samples derived from evidence

33
Q

Any wet drug item (mushrooms, marijuana plants) must be ____ prior to packaging

A

Completely air dried

34
Q

Internal & external packaging for drugs

A

Internal- (Heat seal plastic pouches, zipper top baggies)

-External- (Paper evidence envelope or bag)

35
Q

Packaging for Firearms

A

-Cardboard gun box
-Use numerous zip ties around the frame to secure it to the box, (no zip ties in the barrel)

36
Q

If shipping a firearm via USPS, the magazine should be…

A

Placed in a separate
package than the firearm.

37
Q

Common types of Impression evidence are?

A

-Footwear impression evidence
-latent prints
-Tire tracks
-Tool marks

May collect entire item, portion, photograph, lift of impression, and or a cast of the impression.

38
Q

Comparison quality photos are ideally taken with…

A

-Camera mounted on a tripod so that plane of the camera is 90 degrees to surface of the item
-A loss-less format
-proper illumination & exposure
-Proper focus
-A scale included
-The impression filling the frame as much as possible

39
Q

Casting of footwear and tire impressions is usually accomplished using?

A

Dental stone

40
Q

Wax spray can fix?

A

Snow impressions and increase contrast for photography

41
Q

Aerosol hairspray can help fix?

A

Dust impressions

42
Q

Evidence photographs should be taken with a?

A

A scale

43
Q

True or false -Numerous latent lift cards can be placed together in one evidence package

A

True

44
Q

What alcohol analysis test should be the last resort?

A

Urine alcohol test

45
Q

Examples of trace evidence

A

Hairs, fibers, wood chips, metal shavings, vegetation soil

46
Q

Ways to package trace evidence

A

Internal:
-Glassine envelope, coin envelope, druggist’s fold, adhesive lift in sheet protector

External;
-Paper envelope or sack

47
Q

When executing a search warrant you must leave…

A

An inventory and a copy of the search warrant at the location

48
Q

The inventory of a search warrant must include

A

-Date
-List of items taken
-Signature of one detective/officer
-Signature of one witness (Officer, /detective/assistant)

49
Q
A

Law (5 decks)

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