1. LIP PRINTS

2. History/Field
In 1970, the Japanese conducted a study to compare lip prints
A second study was done in 1991
The study of lip prints is called cheiloscopy

3. Lip prints
Lips, like fingers, have special features that belong only to the individual making the print
No two lip prints are exactly the same so a print can be used to identify an individual

4. Collecting lip prints Talcum powder is placed near the print
The powder is then brushed in both directions over the print with a soft brush
After the print is photographed, clear tape can be used to “lift” the print

5. Common lip patterns There are 5 common lip patterns:
Short vertical lines
Long vertical lines
Rectangular lines that may crisscross
Lines that form diamond patterns
Branching lines