Toolmarks

Front

What must first be done with impression evidence?

Back

Photograph it with a ruler.

Front

How does Locard's principle relate to tool marks?

Back

A tool can leave an impression of itself on another surface.

Front

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

Back

Indentation.

Front

What is a tool mark?

Back

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

Front

What is an Indentation Mark?

Back

An indentation mark is a type of tool mark created when a tool presses into a softer material, leaving a negative impression.

Front

What is an Abrasion Mark?

Back

An abrasion mark is a type of tool mark that occurs when a tool scrapes or rubs against a surface, removing material.

Front

What is a Cutting Mark?

Back

A cutting mark is a type of tool mark that results from a tool cutting through a material, leaving a distinct line or groove.

Front

What is the significance of photographing tool marks?

Back

Photographing tool marks provides a permanent record of the evidence and helps in analysis and comparison.

Front

What materials can be used to make casts of tool marks?

Back

Plaster or dental stone can be used to make casts of tool marks.

Front

What is the purpose of Locard's principle in forensic science?

Back

Locard's principle states that every contact leaves a trace, meaning that a tool will leave an impression on a surface.