F-Chapter 11 Pre-Test

Which method is used to support a likely sequence of events at a crime scene by observing and evaluating physical evidence and statements made by individuals involved with the incident? (11.1)

• trace analysis
• crime-scene reconstruction
• bloodstain pattern analysis
• expert testimony
• I don't know yet.

What information can be derived from the size and distribution of blood droplets in a crime scene? (11.2)

• Perpetrator's exact height
• Victim's blood type
• The height and angle of the blood source
• Victim's height and weight
• I don't know yet.

The direction of travel of blood striking an object can be ascertained by the stain's shape because: (11.2)

• the pointed end of a bloodstain always faces away from its direction of travel
• the rounded end of a bloodstain always faces its direction of travel
• a round bloodstain means that the striking object was travelling at a high velocity
• the pointed end of a bloodstain always faces its direction of travel
• I don't know yet.

What is the shape of a bloodstain that impacts a surface at a low angle? (11.3)

• long tail
• oval, no tail
• short tail
• perfectly round
• I don't know yet.

Blood deposited on rough surfaces will exhibit: (11.3)

• satellite spatter and irregular edges
• a nearly circular shape
• tails
• no tails
• I don't know yet.

In the context of blood spatter, what defines a low-velocity impact? (11.5)

• Speeds below 5 feet per second
• Speeds between 5 and 25 feet per second
• Speeds above 25 feet per second
• Speeds varying based on temperature
• I don't know yet.

The three-dimensional area of origin of an impact bloodstain pattern may show: (11.6)

• the number of blows the victim received
• the position of the victim
• the shape of the object used to create the pattern
• the area of convergence
• I don't know yet.

The common method to determine the area of origin at the crime scene uses: (11.6)

• rulers
• strings
• photographs
• lasers
• I don't know yet.

Blood spatter deposited on an object between the source of the blood and the surface of deposition leaves a(n) _______ on the surface that may show the shape of the object. (11.7)

• expirated blood pattern
• void
• medium-velocity pattern
• trail
• I don't know yet.

What is the primary purpose of using the grid method in documenting bloodstain patterns at a crime scene? (11.8)

• To establish the directionality of bloodstains
• To create a visual representation of the entire crime scene
• To accurately measure the dimensions of individual bloodstains
• To identify the point of origin of blood spatter
• I don't know yet.