Now that you know the history of fingerprinting,
let's take our own. Then, examine and classify them.
Take a magnifying glass and study the patterns
on your fingers.
1. What do you notice?
2. Are the patterns the same on each finger?
Fingerprints are impressions that are created
by ridges on the skin. When a person touches an object, the perspiration,
oils, and amino acids on the skin are transferred to the object, frequently,
leaving an impression of the ridge pattern. This is called a fingerprint.
No two people have the same fingerprints, not even identical twins.
Create your own set of fingerprints.
1. Rub a small dark area
with a pencil point on a sheet of white paper.
2. Press and rub your right index finger
in the pencil-lead dust.
3. Place the sticky side
of a piece of transparent tape on the dusted finger.
4. Take the tape with the
fingerprint and tape it to a clean sheet of white paper.
5. Label the fingerprint
to identify which finger you have printed.
6. Continue the process until
you have all ten fingers printed.
Fingerprints may also be taken
by pressing one finger at a time into an inkpad and then pressing and rolling
each finger onto a sheet of white paper. Be sure to label each print. The
prints may smudge if not done carefully. Also be sure clothing is protected.
Some employers require a background check using fingerprints. View an example of a background check form with Adobe Acrobat.