Toolmark Identification in Forensic Science

What is the primary concern of toolmark identification in forensic science?

• To determine the type of material used in a tool

• To determine if a toolmark was produced by a particular tool

• To find the owner of the tool

• To estimate the age of the tool

Which type of toolmarks are produced when enough pressure is applied to a tool against an object, leaving an impression?

• Striated marks

• Abrasion marks

• Impressed or compression marks

• Friction marks

What are striated toolmarks?

• Marks made by a tool sliding across an object

• Marks made by a tool pressing into an object

• Marks made by a tool cutting an object

• Marks made by a tool heating an object

What should NEVER be done during the investigation of a toolmark?

• Taking photographs of the toolmark

• Fitting a tool into an impression to see if it made the mark

• Documenting any broken, forced, or cut locks

• Collecting tools from a suspect

What types of photographs are necessary for courtroom presentation of toolmark evidence?

• Close-up photos showing the detail of the toolmark

• Photos showing the entire scene

• Both A and B

• Photos of the suspect holding the tool

What should be included in photographs of tool marks to accurately depict their physical location and arrangement?

• The type of camera used

• The height from the floor or ground

• The weather conditions during the photograph

• Nearby unrelated objects for context

Before processing for latent fingerprints on a toolmark, what should be examined first?

• The chemical composition of the tool

• Any loose debris around the toolmark

• The presence of any latent fingerprints

• The color of the toolmark

How should large items with toolmarks be handled for evidence removal?

• They should be photographed and left in place

• Only a small portion of the mark itself should be removed

• A sufficiently large piece of the surrounding surface area must be included

• The entire item must be transported to the laboratory

What is the recommended way to package a toolmark evidence to avoid damage?

• Wrapped in aluminum foil

• Padded with soft cotton or tissue and covered with paper bag

• Sealed in a plastic bag with desiccants

• Placed loosely in a cardboard box

What is the purpose of using Mikrosil for toolmark examination in forensic science?

• To enhance the visibility of the toolmark under normal lighting

• To reproduce the fine detail needed for microscopic comparison

• To permanently alter the toolmark for preservation

• To color the toolmark for photographic evidence