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Related Experiment Videos

Bitemarks in chocolate: a case report.

C J McKenna1, M I Haron, K A Brown

  • 1Forensic Odontology Unit, The University of Adelaide, South Australia.

The Journal of Forensic Odonto-Stomatology
|April 28, 2001
PubMed
Summary
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Forensic dentists analyzed bite marks on stolen chocolate, matching unique dental characteristics to a suspect. This dental evidence was crucial in identifying the perpetrator in the chocolate factory theft case.

Area of Science:

  • Forensic Odontology
  • Criminalistics

Background:

  • Bite mark analysis is a recognized forensic technique.
  • Irregular fractured surfaces on recovered items can preserve dental impressions.

Purpose of the Study:

  • To determine if human teeth marks on stolen chocolate could be linked to a suspect.
  • To evaluate the uniqueness and comparability of dental characteristics.

Main Methods:

  • Impression casts were made from bite marks on chocolate.
  • Photomicrography was used to examine and compare dental features.
  • Detailed casts of the suspect's dentition were created for comparison.

Main Results:

  • Bite marks on the chocolate exhibited patterns consistent with human dentition.

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  • Unique dental characteristics, including a notched incisor and tooth spacing, were identified.
  • Direct and photomicrographic comparisons confirmed a match between the chocolate marks and the suspect's teeth.

    • Conclusions:

    • The study successfully demonstrated the use of dental impression analysis in a criminal investigation.
    • Unique dental characteristics can serve as reliable identifiers in forensic cases.
    • Bite mark evidence from food items can be admissible in court.