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Question: What are 3 ways tire track evidence can be used?

Tire tracks can be found in snow, mud, dirt, or sand, or even on a victim at a crime scene. These tracks can be collected by photographing, casting, lifting, and/or collecting the clothing from the victim.

How can tire track evidence be used?

Like most evidence, tire tracks can be used to help with the identification of the perpetrator by placing the suspect at the scene by matching the tires with the tires on the suspected vehicle. An example would be a unique wearing of the outer edge of a tire because the alignment of the vehicle is off.

What are the three types of tire pattern evidence?

Evidence that May be Examined Footwear and tire tracks can be deposited on almost any surface, from paper to the human body. Prints are divided into three types: visible, plastic and latent. A visible print is a transfer of material from the shoe or tire to the surface.

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What are 3 characteristics of tires do investigators use to identify the type of tire print is found at a crime scene?

These characteristics are subdivided into wear pattern (the beginning stages or basic position of wear), wear condition (the second degree or further advancement of the initial wear), and wear extreme (extensive wear to the point of destruction of the tread material).

What features of a tire track are analyzed?

In the case of a tire track, if a vehicle is out of alignment, the right front tire may be heavily worn on the outer edge, leaving a unique wear pattern. To do this, examiners use three main characteristics to analyze the imprints and impressions: class, individual and wear.

What are the 3 categories of impressions?

Impressions fall into three basic categories: patent, latent, and plastic. Plastic impressions are three-dimensional imprints. These impressions can be left in soft materials such as snow, mud, soil, or soap.

What are the two types of tire evidence?

Forensics: Tire Impression Evidence

  • patent: tracked through fluid like oil or tar.
  • latent: left on asphalt or concrete roads by manufacturers oils used to keep tires soft (tire)
  • plastic: left in off road surfaces like mud.

What evidence can you find when looking at tire tread impressions?

If properly collected the tire tread impression is extremely valuable in proving a suspect vehicle was present at a crime scene. Tire track evidence can: Positively match a suspect vehicle. Determine the wheelbase or turning diameter of a vehicle.

Are tire tracks individual evidence?

Impression evidence such as marks left on a fired bullet, shoeprints, tire tracks, and toolmarks may be unique and therefore have individual characteristics. No two pairs of shoes or sets of car tires wear in exactly the same way.

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Which can be used to identify the make and model of a tire?

The federally-mandated Tire Identification Number (TIN) molded into the sidewall has the code. The TIN will tell you the tire plant, the tire size code, the manufacturer’s code and the date of manufacturer code.

What markings can be identified on tire tracks?

Tire tracks are the marks or impressions left by the tires of a vehicle, exclusive of the tread design, and include track width, wheelbase, turning radius and the relative positions of the tracks of all four tires.

What type of evidence is impression evidence?

Impression evidence is created when two objects come in contact with enough force to cause an “impression.” Typically impression evidence is either two-dimensional — such as a fingerprint — or three-dimensional — such as the marks on a bullet caused by the barrel of a firearm.

What is the most common function of physical evidence?

What is the most common function of physical evidence? The three roles physical evidence has in a criminal investigation are that it can help establish that a crime occurred (corpus delicti evidence), can be used to make associations between crime scene, offenders, victims and instruments.

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