Not All Bite Marks Are Associated with Abuse, Sexual Activities, or Homicides: A Case Study of a Self-Inflicted Bite Mark

1987 ◽  
Vol 32 (3) ◽  
pp. 12386J ◽  
Author(s):  
Allan J. Warnick ◽  
Lynda Biedrzycki ◽  
Georg Russanow
2014 ◽  
Vol 129 (5) ◽  
pp. 1187-1188
Author(s):  
Herman Bernitz ◽  
Zephné Bernitz ◽  
Gerhard Steenkamp ◽  
Ryan Blumenthal ◽  
Gerrit Stols
Keyword(s):  
Dog Bite ◽  

2011 ◽  
Vol 126 (3) ◽  
pp. 441-446 ◽  
Author(s):  
Herman Bernitz ◽  
Zephné Bernitz ◽  
Gerhard Steenkamp ◽  
Ryan Blumenthal ◽  
Gerrit Stols
Keyword(s):  
Dog Bite ◽  

2020 ◽  
pp. 1-3
Author(s):  
Sargam R. Parate ◽  
Aayushi Chauhan ◽  
Ashish Bodhade ◽  
Alka Dive

Aim: to determine the use of bite marks for human identification by using inter- canine distance and mesio-distal width of maxillary incisors. Introduction: Odontogenic evidence is considered to be the third most precise method of identification of human in forensic sciences. Bite-marks on the body are intentionally made, those found on food particles are usually impractically left by the offender at the scene of crime, these marks are of great importance in identification of the offender. The present study was aimed to determine the use of bitemarks for human identification by using inter-canine distance and mesio-distal width of the maxillary incisors. Materials and Methods: 40 consenting volunteers were included in the study. With the help of autoclaved Vernier calliper, the inter-canine distance and mesio-distal width of maxillary incisors were measured and bite on chocolate (CADBURY 5Star) was taken. Using Vernier calliper, Inter-canine distance and Mesio-distal width (2 maxillary central and 2 lateral incisors), were measured from the bite mark. Both measurements obtained were coded and matching was done by two doubly blinded examiners. Results: The probability of correct identification on the basis of IC distance and MD width obtained from bite-marks is 68.35%. The average proportion of correct matching is 0.78 for IC distance measurement and 0.46 for MD width. Conclusion: Metric method can be used for human identification by using bite-mark. IC distance is more reliable and efficient in human identification than MD width.


Author(s):  
Adrian Florin GAL ◽  
Roxana CORA ◽  
Flaviu TᾸBᾸRAN ◽  
Andras NAGY ◽  
Cornel CǍTOI

Forensic veterinary medicine tends to gain increasing importance in veterinary pathology, the number of such cases being still limited. The paper describes cases with multiple cutaneous wounds, with emphasis on bite-mark analysis. The material was represented by corpses (deer and dogs) brought by local authorities to Faculty of Veterinary Medicine Cluj-Napoca (Romania), along with preliminary reports issued by the competent organs. A complete medicolegal survey was done. The cases analyzed by us displayed numerous usually symmetrical (opposed) wounds, with angular margins and elongated aspect (somehow specific to bite wounds). All cases assessed presented laceration of the skin from the subcutaneous tissue, rupture of muscle and (in some cases) perforation of internal organs. The features of the bite-marks described were typical for carnivores. Depending on the species involved, the topography of lesions varied. In deer, the ventrolateral area of the neck and the lumbar/dorsal region were more commonly affected. The distribution suggests the hunting instinct of carnivores by trying to induce suffocation of the prey. In the analyzed dog corpses, the most affected areas were the auricular, limbs, sternal region, abdominal region. Investigation of bite-marks is an evolving field of forensic veterinary science and remains a provocation for veterinary pathologists.


2020 ◽  
Vol 9 (12) ◽  
pp. e40391211177
Author(s):  
Maria Isabel de Oliveira e Britto Villalobos ◽  
Marta Regina Pinheiro Flores ◽  
Rodrigo Galo ◽  
Antônio Castelo Branco ◽  
Ricardo Henrique Alves da Silva

Forensic Odontology is the science that correlates dental and legal principles, used for processes such as human identification. One of the possible acting fields for Forensic Odontologists is the analysis and study of patterns and injuries created by human bite marks. This study aimed to show the applicability of dental marks printed in chewing gum for human identification in forensic investigations. A transversal observational study was carried out. The data was collected from 20 volunteers over 18 years old. Each subject had their upper and lower dental casts and was asked to chew a piece of gum for one minute. The pieces of chewing gum were refrigerated at -20ºC for a week, and reproduced with addition and condensation silicones using an adapted reproduction technique. The analysis of the chewing gum was made by overlays. The ANOVA test showed no significant differences on width and length between the pieces of chewing gum and their reproductions (greatest width p=0.918, and the length p=0.981). The analysis of the reproductions with plaster mold showed that there was no difference when using addition silicone or condensation silicone. During the analysis, various suspects could be excluded from the investigation (up to 11, depending on the technique used), but it was not possible to confirm one of them as the main suspect. The study showed that the reproduction technique of chewing gum is efficient, viable and easily performed; and can be used in cases of human identification in forensic investigations. However, it is necessary to certify that the chewing gum effectively presents a bite mark and that it is correctly handled to avoid alterations. It also became evident that the process of refrigeration is essential for the analysis proposed in this study.


2017 ◽  
Author(s):  
Stephanie K Drumheller ◽  
Christopher A. Brochu

Actualistic observations form the basis of many taphonomic studies in paleontology. However, surveys limited by environment or taxon may not be applicable far beyond the bounds of the initial observations. Even when multiple studies exploring the potential variety within a taphonomic process exist, quantitative methods for comparing these datasets in order to identify larger scale patterns have been understudied. This research uses modern bite marks collected from 21 of the 23 generally recognized species of extant Crocodylia to explore statistical and phylogenetic methods of synthesizing taphonomic datasets. Bite marks were identified, and specimens were then coded for presence or absence of different mark morphotypes. Attempts to find statistical correlation between trace types, marking animal vital statistics, and sample collection protocol were unsuccessful. Mapping bite mark character states on a eusuchian phylogeny successfully predicted the presence of known diagnostic, bisected marks in extinct taxa. Predictions for clades that may have created multiple subscores, striated marks, and extensive crushing were also generated. Inclusion of fossil bite marks which have been positively associated with extinct species allow this method to be projected beyond the crown group. The results of this study indicate that phylogenies can and should be further explored for use as predictive tools in a taphonomic framework.


1986 ◽  
Vol 31 (4) ◽  
pp. 11904J ◽  
Author(s):  
Raymond D. Rawson ◽  
Gerald L. Vale ◽  
Edward E. Herschaft ◽  
Norman D. Sperber ◽  
Steve Dowell
Keyword(s):  

2015 ◽  
Vol 282 (1798) ◽  
pp. 20142429 ◽  
Author(s):  
Mardik F. Leopold ◽  
Lineke Begeman ◽  
Judith D. L. van Bleijswijk ◽  
Lonneke L. IJsseldijk ◽  
Harry J. Witte ◽  
...  

Harbour porpoises ( Phocoena phocoena ) stranding in large numbers around the southern North Sea with fatal, sharp-edged mutilations have spurred controversy among scientists, the fishing industry and conservationists, whose views about the likely cause differ. The recent detection of grey seal ( Halichoerus grypus ) DNA in bite marks on three mutilated harbour porpoises, as well as direct observations of grey seal attacks on porpoises, have identified this seal species as a probable cause. Bite mark characteristics were assessed in a retrospective analysis of photographs of dead harbour porpoises that stranded between 2003 and 2013 ( n = 1081) on the Dutch coastline. There were 271 animals that were sufficiently fresh to allow macroscopic assessment of grey seal-associated wounds with certainty. In 25% of these, bite and claw marks were identified that were consistent with the marks found on animals that had tested positive for grey seal DNA. Affected animals were mostly healthy juveniles that had a thick blubber layer and had recently fed. We conclude that the majority of the mutilated harbour porpoises were victims of grey seal attacks and that predation by this species is one of the main causes of death in harbour porpoises in The Netherlands. We provide a decision tree that will help in the identification of future cases of grey seal predation on porpoises.


2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Anirban Maji ◽  
Tanya Khaitan ◽  
Rupam Sinha ◽  
Soumyabrata Sarkar ◽  
Pratik Verma ◽  
...  

Background. Bite mark analysis is an imperative area of forensic odontology and considered the commonest form of dental evidence presented in the criminal court. The process of comparing bite marks with a suspect’s dentition includes analysis and measurement of shape, size, and position of an individual’s teeth. The present study was aimed to evaluate the bite marks of males and females using a novel indirect computer-assisted method and explicate its application in forensic odontology. Materials and methods. 60 subjects (30 males and 30 females) with normal occlusion were included in the present study. Bite registrations were obtained with help of modelling waxes, and positive replicas were prepared with dental stone and barium powder. Intraoral periapical radiographs were taken for the same. The radiographs obtained were scanned and analyzed by measuring tools using Sidexis Next Generation software. Intercanine distance (ICD), line AB, angle ABX, and angle ABY were measured. The Kruskal–Wallis test was performed to compare the bite marks of males and females. Results. The mean ICD of males and females was found to be 32.95 mm and 29.84 mm, respectively, and was statistically highly significant with a p value <0.001. The mean ICD, line AB, and angle ABX were found to be higher in males when compared to females. Conclusion. Analysis of bite marks using this novel computer-assisted method is a simple, reliable, easily reproducible, and economical technique with confidentiality of the identity of the participants involved.


2015 ◽  
Vol 27 (3) ◽  
Author(s):  
Yuti Malinda ◽  
Dewi Zakiawati

Introduction: Bite mark analysis casework strives to connect a biter to the teeth pattern present on the object linked in some way to crime or event. This analysis requiring an immediate response by the forensic odontologist since the marks fade rapidly in the living and the dead in a matter of hours. The aim of this article is to help the dentist to know and understand the procedures of bite mark identification in forensic odontology field. Literature review: Bite marks may be present the following situations, a fight between adults or children, a part of sexual or physical assault by adult on children, a rape, and homosexual activities. The marks can be single or multiple, varying degrees of severity from mild marking of the tissue to deep perforation, varying location may be found on breast, face/ head, abdomen, shoulder, upper extremity, buttocks, female genitalia, male genitalia, legs, ear, nose and neck. Discussion: Dentist should master the bite mark analysis procedures. When the suspect has been recognized, the first thing to do is swabbing the oral mucosa, and then taking photographs. The next steps are preparing to take impression, and always taking notes about the procedure and the result. A soon as all the documents are completed, do the matching procedures. Delay examination will cause the lost of valuable evidence. Conclution: Dentist should carefully determine the conclusion among these possibilities , the mark is “possible biter”, “probable biter”, or “with a high level of confidence, is the biter”


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