Working the scene

Question 1

What is the primary crime scene?

Answer 1

where crime occurs

most evidence is found there

Question 2

What is the secondary crime scene?

Answer 2

related to crime scene

might help find the primary crime scene

Question 3

When the crime scene investigator arrives at the crime scene, they must…
_____ the victims (give ___ ____ if necessary).
Approaching body in an ____ route in order to ____ evidence.
_____ the perpetrators if one the scene, ____witness ( record _____). _____ suspects

Answer 3

Assist or help
First-aid 
indirect 
protect 
Arrest
detain 
statement
separate

Question 4

To protect the evidence, we must apply the ___ ____ rule. This is why only _____ _____ is allowed on the crime scene. When they arrive at the crime scene, the crime investigators wll determine a _____ entryway.

Answer 4

locards exchange
authorized personel
common

Question 5

Why is it crucial that the crime investigator documents the procedure and fast?

Answer 5

They have a limited amount of time before specialist come rushing in.

Question 6

Notes will ___ the scene, ___ ___ of evidence and record the _____ of the personel. They will also note the interview of the ____ ____.

Answer 6

describe
keep track
movement
firest responder

Question 7

______ ____ shots of the crime scene before and after _____ are positioned. ___ ___ before each item is _____.
MUST include _____ of _____, from at least ___ objecct/wall/etc. The photographers must take pictures from different ____, to get the position of the object.

Answer 7

wide angled
markers 
closed up
moved 
points of reference 2
angles

Question 8

Why is it necessary to have points of reference in the picture?

Answer 8

to know the size and placement of the object in question.

Question 9

Why can’t videos replace pictures?

Answer 9

• shaky
• zoom is often sloppy
• narration is often obsucred by sound
• deteriorate with time, humidity, light and temperature

Question 10

What is the (only) advantage of videos and what must be done?

Answer 10

Sound

must make a transcript of the sound/voice over.

Question 11

_____ sketches are initially made.

Answer 11

Rough

Question 12

What is the main purpose of the crime scene sketch?

Answer 12

Relationship of items to the body (in case of murder)

Question 13

Every object in the sketch must be identified with the distance from…

Answer 13

two fixed points

Question 14

Name the 7 things that a sketch must include?

Answer 14

1. Location
2. Date
3. Time
4. Incident
5. Sketch by…
6. Objects
7. Compass with the north

Question 15

How must a crime investigator reconstruct the crime in his mind?

Answer 15

Visualize the crime in his mind based on evidence, (open windows, hair, fibers).

Question 16

Why do they try visualize the crime scene?

Answer 16

helps to identify the truthfullness of the suspects/witness

Question 17

What is one crucial thing that crime scene investigators must be aware and be careful of when imagining the crime?

Answer 17

Perpetrators might have planted or moved evidence to make it seem like something it isnt (suicide, robbery).

Question 18

What is the difference between direct and circumstancial evidence?

Answer 18

Direct is facts. Witnesses, confessions, etc. Less reliable

Circumstancial is by inference/indirect. Requires the judgment of judge or jury: hair or fingerprints. More reliable.

Question 19

What is reconstructive evidence?

Answer 19

helps understand what happened during the crime - figure out who is lying and who isnt.

Question 20

What is associative evidence?

Answer 20

Links a suspect to a crime scene. It can either prove something or clear them.

Question 21

The absence of evidence implied they are ______.

Answer 21

innocent

Question 22

Everything is considered evidence on a crime scene. What does that imply for the crime scene investigator?

Answer 22

They must choose what evidence is important and pertinent. Based on the technology the lab has, the capibilities and limitations and techniques.

Question 23

What is the difference between class evidence and indivvidual evidence?

Answer 23

Class evidence means evidence that can lead to many people (type of car, type of dog)
Individual evidence is only one person (DNA, fingerprints)

Question 24

Explain what happened in the Stepehn Bradley case?

Answer 24

He was convicted by deduction because of many class evidence.

Question 25

What are the two goals when analyzing the evidence?explain each

Answer 25

identification: what a certain evidence is. (Hair is dog hair) comparaison: link to a suspect (this suspect has this type of dog)

Question 26

Using the identification and comparaison technique help...

Answer 26

link a person to more than one crime

Question 27

To obtain a search warrant: 1)affidavit: must indicate in a document ____, ___, ____ and ____ 2)write __________ 3)

Answer 27

location, time and items that are to be searched and the cause official document that is to be presented to the judge have the judge sign the warrant

Question 28

Describe the 4 situation in which a police officer can search without a warrant.

Answer 28

1) emergency situation: life is in danger 2) Impending loss of evidence: fire or suspect destroying evidence 3) Lawful arrest: once person arrested searching without a warrant is legit 4) Consented search: both parties agreeded to search

Question 29

What is trace evidence?

Answer 29

Evidence that is really tiny

Question 30

Describe and name the 4 patterns to search crime scenes:

Answer 30

1) grid : quadrille 2) linear: corridor 3) quadrant zone: small squares in a bigger squares, than smaller squares again 4) spiral:

Question 31

What is the first piece of evidence that must be collected? example

Answer 31

fragile, easily damaged, lost or contaminated. | outdoors scene

Question 32

Gathering evidence: Fingerprints are ____, then ____ or ______

Answer 32

photographed lifted transferred

Question 33

Gathering evidence: Tool marks, shoe prints, tire impressions are ____, lifted than we make a _____ with ___ ____

Answer 33

photographed cast dental stone

Question 34

Gathering evidence: fibres and hair are searched with ____ _____ then picked up with ____.

Answer 34

special lights | tweezers

Question 35

Gathering evidence: carpets and furniture are _____ with ___ ___ ___ ____

Answer 35

vacuumed | fresh bag per area

Question 36

packaging evidence: each piece of evidence is packaged ____

Answer 36

separately

Question 37

packaging evidence: Dry evidence is placed in ____, ____, ____, ______, ____, (name as much as you can)

Answer 37

``` druggists fold enveloppes canisters plastic pill bottle paper/plastic bags ```

Question 38

packaging evidence: documents are placed in ____-

Answer 38

plastic covers

Question 39

packaging evidence: liquids and solids are placed in ____ because....

Answer 39

unbreakable, airtight containers - evaporation

Question 40

packaging evidence: wet/moist biological is placed in _____ because...

Answer 40

non-airtight containers - no bacteria grows

Question 41

packaging evidence: easily damageable are processed ___ ___ ___ and removed with _____

Answer 41

at the scene | surroundings

Question 42

name the different type of containers 7

Answer 42

1) plastic pill bottle 2) manila envelopes 2) screw cap glass vials 4) sealable plastic bags 5) metal pillboxes 6) new paint cans 7) paper bags

Question 43

What is the purpose of a control sample?

Answer 43

compare with the ones we got on the scene to make links

Question 44

What is the chain of custody?

Answer 44

record that show evidence was kept safe and has not been tampered

Question 45

What needs to be written on each piece of evidence to make it admissible in court? 7

Answer 45

``` case number name + initials person who found it description name witness date time location evidence found ```

Question 46

every time the evidence is passed to a new person you must...

Answer 46

initialize and date

Question 47

What is the technique used to figure out the size of the crime scene?

Answer 47

exit entrances and escape routes where importance evidence was found where evidence could've been moved or disguarded