There are so many things that make you unique, the way you walk, smile, your values, thoughts, ideas. But there's something about each one of us that no one in the world has and that is our fingerprints. Fingerprints are even more unique than DNA - even though identical twins can have the same DNA, they cannot have the same fingerprints. Learn about what makes finger prints unique, the main patterns, and how fingerprints are used in crime investigation. Also learn about an interesting 30 year old cold case that is solved with the help of fingerprints and how in today's tech driven world, fingerprints are used as passwords - a science called biometrics.