Lip Prints as Evidence?

Im sure you have heard of fingerprinting to identify someone, but what about lip prints? Think about the movie Holes, where the Kissing Bandit leaves behind her lip print at every scene. That could be used to identify her!

We collected lipprints in class by putting on lipsitck and then pressing our lips against note cards in class. We then had to analyze the lips, and point out distinguishing features. Lip prints can be identified by various features, such as the dip in the upper lip, grooves in the lip, the size of lips, or scars on the lip, as shown in this lab that we did in class. We matched unknown lipprints by using these identifying factors. When we had to identify the lips, it wasnt as easy as you would think because some in the group we had to look at looked very different from the day before.
These are my lips:

If the print is too blurred, and there are no distinguishable features, skin or saliva can be used to collect DNA to identify someone.