Tool Marks

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

• true 
• false

What type of tool mark is the result of the tool pressured into a soft surface?

• Abrasion
• Cut
• Indentation
• Patent

Why should an investigator not try to put the tool into the tool mark at the crime scene

• it will destroy the toolmark evidence that is there
• it will leave new evidence behind covering up the original
• contamination of the evidence
• all of these

___________ are made when surfaces slide across one another.

• Indentation marks

• Abrasion marks

• Cutting marks

• None of these options

____________ are produced along the edge of a surface as it is cut.

• Indentation marks

• Abrasion marks

• Cutting marks

• None of these options

Nicks, ridge marks, and blemishes may develop on tools from striking a surface. These marks can be used to distinguish one tool from another.

• True

• False

_________ is the first step of evidence collection with tool marks.

• Photographing

• Casting

• Removing the impression

• None of these options

Forensic investigators use databases of tool marks to determine the type of tool used in a crime.

• True

• False

In court, the lawyer must be able to fit the tool into the tool marks to convince a jury that they are consistent.

• True

• False

When forensic investigators identify a tool that is consistent with tool marks, they know that the owner of the tool was at the crime scene.

• True

• False