Joseph T. Hefner
Assistant Professor of Criminal Justice and Environmental Science Michigan State University
- East Lansing MI
Joseph Hefner is an expert on identifying human remains from medico-legal contexts.
Media
Biography
Dr. Hefner’s graduate students participate in current research on cranial macromorphoscopic traits and pursue their own academic/applied interests.
Dr. Hefner is a board certified forensic anthropologist (D-ABFA) and a founding editor of Forensic Anthropology (journal). He is a Fellow of the American Academy of Forensic Sciences, a member of the Register of Professional Archaeologists, American Association of Anatomists, Sigma Xi, and he is an Assessor for the American Society of Crime Laboratory Directors, Laboratory Accreditation Board.
Industry Expertise
Areas of Expertise
Accomplishments
The Joint Civilian Service Commendation Award,
The Joint Civilian Service Commendation Award, Department of Defense, Joint POW/MIA Accounting Command-Central Identification Laboratory - 2014
Education
Western Carolina University
B.S.
Anthropology
1997
Mercyhurst College
P.B.
Forensic Anthropology
2000
University of Florida
M.A.
Anthropology
2003
University of Florida
Ph.D.
Anthropology
2007
Journal Articles
Application of the Stephan et al. chest radiograph comparison method to decomposed human remains
Journal of Forensic Science2017
This manuscript describes the use of comparative radiography of the chest to facilitate positive identification of human remains in advanced stages of decomposition. The method reported by Stephan et al. for positive identification of dry, disarticulated skeletal elements was used on semifleshed, decomposing remains. Positive identification was established through multiple points of concordance observed in radiographs of the left and right clavicles and the C5-T1 vertebrae. This case study demonstrates the applicability of the Stephan et al.'s method in cases involving decomposing remains.
Intraobserver Error in Macromorphoscopic Trait Data
Journal of Forensic Science2018
As part of a much larger investigation into the use of macromorphoscopic trait data by forensic anthropologists to estimate ancestry from unidentified skeletal remains, we conducted a fourteen-year (2002-2016) intraobserver error study. Motivated by the development of a large macromorphoscopic database-which will potentially utilize data collected in 2002-quantification of observer error, the impact of technological improvements in macromorphoscopic trait data collection and observer experience is necessary. To maximize comparisons between the two samples, ten macromorphoscopic traits were assessed. Results revealed three patterns of error relating to observer experience, the introduction of new technologies, and error inherent in the method. Overall, this study found the effect of error on macromorphoscopic trait analysis could be predicted and did not significantly impact their utility.
Forensic fractography of bone: A new approach to skeletal trauma analysis
Forensic Anthropology2018
Fractography is the study of fracture surface morphology, and it can be used to assess a material’s mechanical properties as well as to determine the underlying mechanisms leading to material failure. Fracture surfaces reveal information about fracture initiation and propagation in bone, yet little consideration has been given to bone fracture surfaces in forensic contexts. Moreover, the science of fractography has never been applied to bone in forensic anthropological contexts. Here we test the application of principles of fractography to the analysis of fractured femoral cortical bone to assess the utility of fractography in the forensic analysis of skeletal trauma. We find that features, which we term bone mirror, arrest ridges, bone hackle, wake features, and cantilever curl, can be used to reliably determine the point of fracture nucleation and direction of fracture propagation. These features can generally be seen with the unaided eye and are further enhanced using oblique lighting, contrast medium application, and low-power microscopy. This approach is reliable and can be easily and inexpensively applied in forensic anthropological examinations.
Forensic Anthropology: A Journal for our Discipline
Forensic Anthropology2018
Welcome to Forensic Anthropology, the only journal devoted to the advancement of the science and professional development of the fields of forensic anthropology and forensic archaeology. Forensic Anthropology is an inclusive venue created to foster professional discussions about research, policy, and the application of forensic anthropology globally. Issues will (at least initially) be published quarterly and available in electronic and print format. Subscription information, submission instructions, and other details can be found on the journal’s website: http://journals.upress.ufl.edu/fa.
The Macromorphoscopic Databank
American Journal of Physical Anthropology2018
The development of identification standards in forensic anthropology requires large and appropriate reference samples comprising individuals with modern birth years. Recent advances in macromorphoscopic trait data collection and analysis have created a need for reference data for classification models and biological distance analyses. The Macromorphoscopic Databank (N ∼ 7,397) serves that function, making publicly available trait scores for a large sample (n = 2,363) of modern American populations and world-wide groups of various geographic origins (n = 1,790). In addition, the MaMD stores reference data for a large sample (n = 3,244) of pre-, proto- and historic Amerindian data, useful for biodistance studies and finer-levels of analysis during NAGPRA-related investigations and repatriations. In developing this database, particular attention was given to the level of classification needed during the estimation of ancestry in a forensic context. To fill the knowledge gap that currently exists in the analysis of these data, the following overview outlines many of the issues and their potential solutions. Developing valuable tools that are useful to other practitioners is the purpose of growing a databank. As the Macromorphoscopic Databank develops through data collection efforts and contributions from the field, its utility as a research and teaching tool will also mature, in turn creating a vital resource for forensic anthropologists for future generations.
