5 – Use a ruler to make the measurements shown and record in the table below along with any notes regarding unique characteristics you observe in the teeth. 4 – Place a sheet of the plastic film over the impression and use a permanent marker to recreate the pattern to match that of your bite mark. 3 – Gently bite down on the plate to leave your bite mark impression. 2 – Label one side MAXILLA and the other MANDIBLE. Possible identification-consistencies exist, but not enough to make an exact match Insufficient evidence-not enough evidence to make a determination Exclusion-does NOT matchġ – Fold the Styrofoam plate in half. These bite marks have provided crucial physical and biological evidence in the prosecution of such crimes in the courts of law3. Human bite marks occur primarily in violent crimes like sex-related offences, homicide and child abuse c ases2. Shape of arch Tooth alignment Thickness Width Spacing Missing teeth Other unique featuresġ7 Terminology Positive identification-exact match Bite marks are defined as ‘physical alteration in a medium caused by the contact of teeth’1. Bundy had bitten one of his murder victimsa woman in a. During his first murder trial in 1979, when Bundy sat before Judge Cowart, reporter Dan Sewell, and a host of enraptured fans lost in helpless admiration, the then-defendant was forced to watch as his tooth impressions ultimately betrayed him. Will display the specific characteristics of the teethĩ The dark markings identify specific characteristics.įillings, caps, chips, evidence of dental workġ0 Types of Bites clear impression means that there was significant pressure Obvious bite signifies medium pressure noticeable impression means that the biter used violent pressure to bite down.ġ3 Food can be evidence Investigators can compare the bite patterns on the food to a known sample. Ted Bundy Bite Marks: Courtroom Analysis. He showed them the structure of alignment. These measurements can later be compared to a victim or suspectĦ Development of a child’s teeth can help estimate the age of a young victim.Ĩ A human bite mark will be elliptical or circular and He pointed out how unique the indentation mark was and showed how it matched the dental impressions of Bundys teeth. Area is swabbed for traces of saliva (may contain DNA) Area is swabbed for microorganisms Impressions of the bite mark are madeĥ Measurements Investigators take careful measurements of the bite marks Photograph the area with a ruler near the injury (in color and B&W). Forensic odontologists will make a cast or take pictures of the bite marks Bite marks can be classified by four degrees of impression. Dental records including x-rays can also provide useful information, especially when attempting to identify a victim.ģ Individual Evidence Bite marks, like fingerprints, are unique to an individual. relatively simple to record the evidence from the injury and the teeth for comparison of the. Saliva or blood may be left behind that can be tested for DNA. Marks can be left on a victim’s skin or other objects, such as Styrofoam cups, gum, or foods. Presentation on theme: "Bite Mark and Teeth Impression Evidence"- Presentation transcript:ġ Bite Mark and Teeth Impression EvidenceĢ How do forensics investigators use bite mark evidence?Īnalyze bite marks for characteristics to identify victims or suspects or exclude others.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |