Bite marks introduction to medical and dental students of IMU.

1. If you cover the bottom part of the picture, everything seems normal, but once the bottom part is revealed, the two workers below should be “hanging” but the picture explains otherwise.

2. What do you think ? What will happen to this bird. Yummy Yummy Yummy He loves me He loves me not ???

3. Sometime finding the real culprit is very difficult

4. Dr. Muneer Gohar Babar [email_address] Ext No: 1210

5. Bite Marks Investigation It is not everybody job … training is required.

8. A Crash Course in Dentistry

12. BRITISH DENTAL JOURNAL, VOLUME 190, NO. 7, APRIL 14 2001 Shovel-shaped incisors Cusp of Carabelli

13. BRITISH DENTAL JOURNAL, VOLUME 190, NO. 7, APRIL 14 2001

14. Criminals can lie through their teeth but their teeth rarely lie!

15. Bite marks and shark attack.

24. Ted Bundy: Murdered at least 100 women. Ted Bundy: Attractive, smart, and had a future in politics. Bundy worked on the re-election campaign of Washington's Republican Governor Dan Evans. Evans was elected and he appointed Bundy to the Seattle Crime Prevention Advisory Committee. Bundy's political future seemed secure, when in 1973 he became assistant to Ross Davis, chairman of the Washington State Republican Party.

26. Sample Analysis http://forensic.to/webhome/bitemarks/

27. Sample Analysis Bite mark : Upper Jaw Distance Suspect ; Upper Jaw Distance Cuspid to cuspid Cuspid to cuspid 38mm 42mm Bite mark: Distance Suspect: : Distance Tooth 6 to Tooth 10 Tooth 6 to Tooth 10 44.25mm 39.65mm Angle: + 14.5 Degrees Angle: + 12.52 Degrees

29. Bite mark Analysis Using 3D Scans-- DentalPrint™ 3D scans of dental casts are used to generate overlays using various pressure and deviation .

31. Matching Using Dental Codes – CAPMI* / WinID * Computer Assisted Post Mortem Identification

32. Automatic Dental Identification System Genuine image has a smaller matching distance than the imposter image. Images with smaller distance are included in the candidate list . Query Image Genuine Matching Distance = 4.22 Imposter Matching Distance = 27.57

35. * Daubert Standards and Bite marks *The Daubert standard is a legal precedent set in 1993 by the Supreme Court of the United States regarding the admissibility of expert witnesses' testimony during federal legal proceedings. A Daubert is a motion, raised before or during trial, to exclude the presentation of unqualified evidence to the jury. This is a special case of motion in limine, usually used to exclude the testimony of an expert witness who has no such expertise or used questionable methods to obtain the information.

39. Consider the Following Outlines of the same set of teeth. The different perimeter shapes depend on how far the teeth are pressed into the test substrate.

40. Some sample casts

42. Structure of the dog and human jaw. Mandible (M) the main body of the lower jaw; the Rami (R), a broad structure out of the place of the teeth; the Coronoid Process (CP) sits within the zygomatic arch and is the point of attachment for the temporalis muscle (TM ); the Condylar Process (CY) that is the temporomandibular joint. The masseter muscle is across the rami, a much larger structure in humans. The Medial and Lateral Pterygoids are more prominent in humans than in dogs.

43. Human Bite by children.

44. Anger / Rage

55. Thank You for Listening