Footprint evidence collection

As Dr. Lamar suggested, the Kudzu Kids went to the Youngs' house and got their permission to look for a footprint in their flower bed where the unidentified person in the security video may have stepped.

When they found a footprint, the Youngs agreed to let the Kudzu Kids make a cast of it using dental casting stone. This process is sometimes referred to as "plaster casting."

First, they put a square ruler on the ground near the footprint. The ruler serves as a scale to show the size of the footprint.

Next, they sprayed the footprint with hairspray to keep the dirt from crumbling and prevent it from sticking to the plaster

After they had mixed up the plaster, they poured it over the footprint and allowed it to set.

When it was ready, they flipped the plaster over to examine the cast and had a magnifying glass ready so they could take a closer look.

Learn more about how to make a cast of a shoe impression.