Impressions Review

Which type of evidence has been shown to be the LEAST reliable/valuable for solving a case?

• bite mark evidence
• 3D footwear impression evidence
• 2D footwear impression evidence
• Tool mark evidence

Which of these is TRUE about bite mark evidence?

• It has been scientifically demonstrated that every individual has unique dentition
• It has been well established in court that bite mark evidence is reliable
• When an individual is bitten, the skin stretches and can deform the bite mark
• The most severe bite marks (level 6) are the most useful as forensic evidence

Which type of impression can leave a striation pattern that can be matched to its source? Select all that apply.

• bite mark
• tool mark
• 2D footwear impression
• 3D footwear impression

Which type of impression is analyzed using a comparison microscope?

• bite mark
• tool mark
• 2D footwear impression
• 3D footwear impression

When analysts make a test mark with a tool, what material do they use?

• lump of play doh
• square of clay
• piece of lead
• Mirkosil

Which of these tool marks is a combination of BOTH striation and compression?

• Tool mark 1
• Tool mark 2
• Tool mark 3
• Tool mark 4

CSI find a tool that may have left a tool impression found at the crime scene. Which of these is FALSE?

• CSI will place the tool into the mark to see if it fits before taking the time to collect it
• CSI will wrap the end of the tool in cloth to prevent damage or loss of evidence
• CSI will look for paint chips on the tool that may have been transferred from the crime scene
• The tool will be collected in a ridged container

Which statement is FALSE?

• Striation tool marks are made when a tool is scraped across a surface
• Compression tool marks can be linked to a specific tool that make them.
• Both striation and compression marks are collected with casting material
• Some tool marks are a combination of striation and compression impressions

Which of these is the most overlooked evidence at any crime scene?

• footwear impression evidence
• bite mark evidence
• tool mark evidence

Which of these can NOT be learned from footwear impressions?

• if an individual was at multiple crime scenes
• the approximate weight of the suspect
• how many people were at the crime scene
• possible location of evidence left by the suspect