Chapter 17

1.        A tool mark is any impression, scratch, or abrasion made when contact occurs between a tool and an object.

• true

• false

1.        Cutting marks are marks produced along the edge as a surface is cut.

• true

• false

1.        Abrasion marks are made when surfaces slide across one another.

• true

• false

Tags

NGSS.MS-ESS2-2

1.        The type of saw blade used to dismember a body can be determined by examining the cut surface of the flesh.

• true

• false

1.        Tools have unique characteristics due to manufacturing processes and use over time.

• true

• false

1.        When tools are found, they are collected and packaged together in containers or boxes and then taken to a laboratory for analysis.

• true

• false

1.        Crime scene tool marks and suspect tools are never fitted together to show a match.  This would damage the integrity of the evidence.

• true

• false

1.        Research projects at the Department of Energy’s Ames Laboratory in Iowa State University include building a tool mark image database and developing an algorithm to statistically analyze the images.

• true

• false

1.        There is more than one category of tool marks.  Tool mark categories include:

• cutting marks

• indentation marks

• abrasion marks

• all of these

1.        Any impression, scratch, or abrasion made when contact occurs between an object, such as a tool, and another object is:

• abrasion mark

• indentation mark

• cutting mark

• tool mark