Impression Evidence Lecture Notes

Flashcards covering key terms and concepts related to impression evidence, as discussed in a forensic science context.

Impression Evidence

Evidence created when an object makes a mark or impression on a surface.

Compression Markings

Impressions made by forcefully pushing or pressing an object against a surface.

Scraping Markings

Impressions created by pressure and sliding motions of a harder object over a softer surface.

Footprints

Common type of impression evidence used for identification and analysis at crime scenes.

Gait Pattern

The characteristic manner of walking that can provide information about an individual's physical state.

Casting Impression Evidence

The process of creating a replica of an impression using a material like dental stone.

Preserving Footwear Evidence

Techniques used to protect and collect footprints or shoe impressions from crime scenes.

Dust Footprints

Footprints made on surfaces lacking depth that can be preserved through lifting methods.

Comparison of Footprints

The process of analyzing and comparing suspected footprints to known samples for identification.

Tool Marks

Impressions left by tools on surfaces which can be analyzed for identification.

Trace Evidence

Small particles or residues that are transferred during the commission of a crime, such as paint or oil.

Tire Tread Evidence

Impressions left by tires that can provide information about a vehicle's tread pattern and dimensions.

Physical Match

A forensic comparison determining whether two objects, such as broken tool fragments, were once part of the same item.

Dental Stone

A material used in casting impressions, known for its strength and detail retention.

Preservation Techniques

Methods employed to maintain the integrity of evidence for forensic analysis.

Photographic Evidence

Images captured for documentation of the crime scene or evidence, crucial for later analysis.