Forensic dactyloscopy

Dental Forensics

1. Forensic Dactyloscopy
Dactyloscopy: (daktiloskop e)
The examination of fingerprints in order to
establish identity.
(Greek : dactylos–finger, skopein–to watch)

2. Dactylograms...
FINGERPRINTS
-an impression left by thefrictionridgesof
a humanfinger.
-natural secretions of sweat from
theeccrineglandsthat are present in
epidermal ridges.

3. 3 MAIN CATEGORIES
•Visible fingerprints
-easily to spot which are left by dirt,
grease, blood, etc.
•Impression fingerprints
-which are made indentation in soft
material like butter, putty, tar, etc.
•Latent fingerprint
-processing to make visible and suitable
for analysis.

5. BROAD CATEGORIZATION OF FINGERPRINTS
•Arch, loop & whorl.

6. Factors that affects the endurance of
fingerprints:
•Amount of fatty material in deposit
•Temperature
•Relative humidity
•Air Current
•Exposure to sun

8. END