Semester 1 Finals Flashcards

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1
Q

What are the six methods to search a crime scene?

A

Link method, line (strip) method, grid method, zone method, spiral method, Ray method

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2
Q

What is the link method?

A

There’s no specific pattern, look for evidence that links to specific places in area

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3
Q

What is the line (strip) method?

A

People walk in a straight line in rows, arm length away from each other looking on ground for evidence

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4
Q

What is the grid method?

A

Used for large outdoor crime scenes, same as the line method except you create a grid

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5
Q

What is the zone method?

A

Used on crime scenes of really definable zones, such as houses. Teams are assigned zones, then other searching methods are done in each zone

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6
Q

What is the spiral method?

A

Used on crime scenes with no physical barriers such as open water, start in the area you are searching and you can either go in an inward spiral or an outward spiral

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7
Q

what is The Wheel/Ray method?

A

Used on small circular crime scenes, investigators start from important spot and travel outward along many straight lines from the important spot

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8
Q

What physiological responses are measured during a polygraph test?

A

Heart rate, blood pressure, respiratory rate, skin conduction

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9
Q

Why is it important to establish baselines during a polygraph test?

A

To have a reference on how the subject’s body responds when they are telling the truth

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10
Q

What is a polygraph test?

A

A test that helps determine the truthfulness of someone who may be connected to a possible crime

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11
Q

Is a polygraph test 100% reliable?

A

No

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12
Q

What are antigens?

A

Red blood cell surface markers

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13
Q

What are antibodies?

A

A protein that reacts with an antigen

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14
Q

What is agglutination?

A

Clumping of red blood cells when testing blood compatibly

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15
Q

What are the four blood types?

A

Group A, group B, group AB, and group O

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16
Q

People with this blood type are universal donors

A

Type O blood

17
Q

What is a chromosome?

A

Long DNA molecule with part of or all genetic material of an organism

18
Q

What do restriction enzymes do?

A

They cut up DNA into different sized fragments

19
Q

What sized fragments of DNA move through gel electrophoresis faster?

A

Smaller ones

20
Q

What is the central nervous system?

A

Brain and spinal cord

21
Q

What is the peripheral nervous system?

A

All nerves in the body

22
Q

What is cholesterol?

A

Fat like substance found in all cells in the body

23
Q

Why do we need cholesterol?

A

To build the structure of cell membranes

24
Q

Why is having too much cholesterol bad?

A

Raises risk for heart disease and stroke

25
Q

What is HDL?

A

High-density lipoprotein

26
Q

What is LDL?

A

Low-density lipoprotein