Alternate CSA #2 (Hair and Blood)

1

Which of the following is NOT a layer of the hair shaft?

1

A cast of a hair surface can be made using:

1

The stages of hair growth include all of the following EXCEPT:

1

Microscopic hair comparisons must be regarded by police and courts as:

1

Generally, a human hair can be distinguished from an animal hair by examining:

1

Match the following scale patterns to their proper categories.

coronal
spinous
imbricate

2

Match the medulla patterns to their appropriate descriptions.

Draggable item		Corresponding Item
		fragmented
		intermittent
		continuous
		absent

Calculate the medullary index of a hair whose diameter is 110 microns wide and whose medulla measures 92 microns.

1

medullary index = _______ (2 decimal places)

1

Is this hair animal or human? Explain (1 sentence).

1

Which of the following drops struck the surface closest to a 90-degree angle?__________

1

Which of the following drops struck the surface farthest from a 90-degree angle?
__________

1

In what direction was drop 2 traveling when it struck the surface?

1

Select the following antiserums that show a positive reaction with the substance being tested in the middle well.

6

Blood types: 

type your answers as "A-, AB-, O+"

suspect 1: _______ 
suspect 2:_______ 
suspect 3: _______ 
suspect 4: _______ 
suspect 5: _______ 
crime scene: _______ 

Blood drops 1-3 in the crime scene are impact blood droplets. The area of convergence for blood drops 1-3 are area X1, X2, and X3, respectively. Below are the actual blood drops. You will need to determine the angle at which the blood fell.

6

Measure the blood droplets and show your work in the "edit background" section.

Round your final answer to the nearest whole number.

1

Assuming the distance to the area of convergence is 5.2 feet for blood droplets 1-3, which area of origin is highest off the ground?
__________

2

Blood stain 4 was found on the sliding glass door. This blood stain most likely originated from a __________ due to the high volume of satellites which indicate that the blood was traveling at __________ velocity upon making contact with the surface.

1

What type of blood spatter pattern is shown? __________

1

All of the blood at markers 1-4 is A+. Assuming this is the victim's blood, propose an explanation as to how the victim's blood was deposited in these locations.

4

Examine the hair recovered from the crime scene and compare it with a known exemplar from Troy Drachman (the victim). Are the 2 hairs consistent? __________

You must complete a hair examination form and turn it in to Mr. Ly for full credit on this part of the assessment.

Which of the following is NOT a layer of the hair shaft?

A cast of a hair surface can be made using:

The stages of hair growth include all of the following EXCEPT:

Microscopic hair comparisons must be regarded by police and courts as:

Generally, a human hair can be distinguished from an animal hair by examining:

Match the following scale patterns to their proper categories.

Match the medulla patterns to their appropriate descriptions.

Is this hair animal or human? Explain (1 sentence).

In what direction was drop 2 traveling when it struck the surface?

Select the following antiserums that show a positive reaction with the substance being tested in the middle well.

Measure the blood droplets and show your work in the "edit background" section.Round your final answer to the nearest whole number.

All of the blood at markers 1-4 is A+. Assuming this is the victim's blood, propose an explanation as to how the victim's blood was deposited in these locations.

Measure the blood droplets and show your work in the "edit background" section.

Round your final answer to the nearest whole number.