NIST Finalizes Report of Forensic Bitemark Analysis

Illustration of a typical human dentition viewed in standard anatomical position. Credit: K. Sauerwein/NIST

The National Institute of Standards and Technology (NIST) has finalized the report Bitemark Analysis: A NIST Scientific Review.

The report details the findings from a NIST review of the scientific foundations of bitemark analysis, a forensic technique used to compare the marks on the skin of a biting victim with the teeth of a potential biter.

Following a short introduction on how the review was conducted, the report includes chapters on:

  • Background information on bitemark analysis, including the principles and practices involved in bitemark analysis and comparison.
  • Data and information sources used in the review and how they were located.
  • Important factors that influence the reliability of bitemark analysis.
  • Thoughts on future directions of bitemark analysis.

A draft report was first published in October 2022 and was open for public comments through Dec. 12, 2022. The finalized report includes minor updates based on public comments received.

Supplemental information is available, including the October 2019 CSAFE Bitemark Thinkshop Report. The Center for Statistics and Applications in Forensic Evidence (CSAFE) hosted a NIST-funded meeting in 2019 where forensic dentists, researchers, statisticians, lawyers and other experts addressed scientific questions about bitemark analysis. The meeting summary was written by Alicia Carriquiry, CSAFE director, and Hal Stern, CSAFE co-director, and helped to inform the NIST scientific review.

NIST hosted a three-hour webinar to discuss the draft report and its finding on Oct. 27, 2022. A recording of the webinar is available at

More details about the report can be found at

OSAC Releases Report on the 2022 Registry Implementation Survey

OSAC Registry Implementation Survey: 2022 Report

The Organization of Scientific Area Committees for Forensic Science (OSAC) released its 2022 Registry Implementation Survey results. The report provides a detailed look at the implementation status of the 95 standards posted on the OSAC Registry through June 2022.

The survey is designed to help OSAC better understand how the standards on the OSAC Registry are being used, the challenges around standards implementation and what support is needed to improve it.

The report includes several key takeaways from the survey, including that 128 out of 177 survey respondents reported that their organization had fully or partially implemented one standard on the OSAC registry. Also, of the 95 standards included in the survey, 94 are being implemented.

The OSAC Registry Implementation Survey: 2022 Report is available at

The OSAC Registry is a repository of published and proposed standards for forensic science that define best define best practices, standard protocols and other guidance to ensure the results of forensic analysis are valid, reliable and reproducible. For more information about the OSAC Registry, visit

From page 11 of the OSAC Registry Implementation Survey: 2022 Report:

Priority for Implementing Standards: 2021 & 2022 Comparison
According to the 177 respondents to the 2022 survey, implementation was seen as a higher priority compared to the 155 respondents in the 2021 survey.

Click on image to enlarge. Figure 6. Priority for standards implementation: Comparison between the 2021 and 2022 OSAC Registry Implementation Surveys.
Click on image to enlarge. Figure 6. Priority for standards implementation: Comparison between the 2021 and 2022 OSAC Registry Implementation Surveys.