1. OBJECTIVE: You will be able to…
LIP PRINTS
OBJECTIVE: You will be able to…
-Identify different types of lip print patterns
-Make clear, identifiable lip prints
-(if there is time you will use lip prints to identify an unknown sample)

2. Lip Prints as Identification
Like fingerprints, lip prints are unique, individual characteristics
Recently proven
Allowed as evidence in criminalistics
May be found on surfaces (glass, coffee cup, cigarette butts)

3. Background Identifiable as early as 6 weeks intrauterine
Patterns rarely change over a lifetime
Resist changes from many afflictions, such as infections
Does NOT change significantly post death- cadaveric lip prints are considered satisfactory for identification purposes

4. Lip Print Analysis
Lip can be conveniently divided into zones

5. Renaud Lip Print Classification
Complete vertical
Incomplete vertical
Complete bifurcated
Incomplete bifurcated
Complete branched
Incomplete branched
Reticular pattern
X or coma form
Horizontal
J. Horizontal with other forms bifurcate, branch

6. Your Task: **CAUTION: REAPPLY LIPSTICK between
each print. CLEAN lipstick before sharing—
you may use your own if you have any.**
On a clean sheet of white paper, make a single, clean lip print.
DO NOT WRITE YOUR NAME ON THIS SHEET. HAND IN
On the plain side of a clean piece of paper, be sure to write your name on paper.
Make a lip print on the paper.
Separate the lip print into appropriate sections
Identify the ridge patterns found in each section—Label at least 3 per section.
(NOTE: You may find the same pattern in different sections, but NOT in the same section.)
Hand in