Alphonse used the shapes of facial features such as eyebrows, eyes, ears, nose and lips in his method to identify criminals. Also used were any marks, such as moles, scars and tattoos. He made tremendous effort in creating this system, proving that the sizes of certain bones never changed during adult life.
These measurements could be used to distinguish one man from another! Eventually, the Bertillon system was used by police forces all over the world, including the Scotland Yard! So now you know, ladies and gentlemen, that there was a man named Alphonse Bertillon and that he did more for biometrics than probably anyone in the history.