“การตรวจพิสูจน์ใบหน้า โดยใช้เทคนิคการถ่ายภาพและด้านกายวิภาคศาสตร์”

1. An anatomical and photographic technique for forensic facial identifcation “การตรวจพิสูจน์ใบหน้า โดยใช้เทคนิคการถ่ายภาพและด้านกายวิภาคศาสตร์” Presented by: MISS SUPATRA WANGKALASIN

2. Photography

3. HISTORY

4. HISTORY

5. DEVELOPMENT

6. DEVELOPMENT

7. DEVELOPMENT

12. FINGERPRINT

14. SIGNATURE

15. NOISE

17. ABSTRACT A photographic technique which allows accurate anatomical measurement and tracing of facial features, which allows direct physical comparison of ID document images.

18. INTRODUCTION

20. INTRODUCTION • Methods employed by criminals to avoid detection would also become more dificult because they must use their own photograph for the credential to be of any value.

21. INTRODUCTION • Their ID photograph on the falsified credential is somewhat of a signature the criminal is forced to leave behind and should be exploited forensic investigators

22. CASE Sir Roger Tichborne

23. Materials and methods Legal responsibility • The rules and procedures of local evidencemust be strictly adhered and include:

24. correct exhibit labelling, • appropriate secured storage, • appropriate use of police seals or other tamper proof methods, • maintenance of evidence continuity, • issuing and receiving of appropriate receipts of evidence, • maintaining accurate notes of procedures andexamination findings.

25. Photographic technique • The first stage of the method is to reproduce the original photographs as larger sized prints and at the same magnification. • Magnification is determined by using the interpupillary distance of the subjects as a standard reference .

26. Enlargements with an interpupillary distance larger than 6 cm allows greater accuracy and measurement resolution

27. Distance relationships from a camera viewpoint to two points on (a) the vertical axis (b) the horizontal axis.

28. Consultation with manufacturers of ID photography cameras, concluded that most purpose built ID cameras have equivalent film format and lens focal length, which consequently required subject-distance to remain a reasonable constant.

29. ANATOMICAL ANALYSIS Method for facial comparison has four separate components: • individual facial characteristics (scars, moles, dimples etc),

30. 2. form, size, shape of facial features (nose, eyebrows,mouth, ears, forehead creases),

31. 3. facial symmetry

32. 4. 4.anthropometric measurement.

33. C a s e

34. 1 .individual facial characteristics

35. 2. form, size, shape of facial features

36. 2. form, size, shape of facial features

37. 3. facial symmetry

38. 4. anthropometric measurement.

39. Table 1 Anthropometric facial measurements (mm) Area measuredPhoto APhoto BPhoto C • Interpupillary distance444444 • Horizontal face width between ear roots99 99 99 • Mouth width on oral fissure line35 33.5 33.5 • Nose width on septal/lip line 25.5 25 25.5

40. Preparation of final court report