Fingerprinting Merit Badge Requirement 4b.

Take a clear set of prints using ONE of the following methods
  1. Make both rolled and plain impressions. Make these on an 8-by-8-inch fingerprint identification card, available from your local police department or your counselor.
  2. Using clear adhesive tape, a pencil, and plain paper, record your own fingerprints or those of another person.

In the box marked "Pencil Lead Box" place the pencil so that the lead is on its side and fill the area completely with the pencil.  With each finger tip, rub within the pencil lead box and then roll your print onto the sticky side of a piece of tape.  Your fingerprint should be showing on the tape now. Place the print within the respective finger box.  Do this for all ten of your digits.



Printable Requirement Worksheet
Full Requirements

Why do we have fingerprints?

Many experts think it's to improve grip, but a British study from a few years back suggests otherwise. Researchers found that a fingerprint's ridges actually made it harder to hold flat, smooth surfaces, like Plexiglas, becasuse they reduced the skin's contact area.  Instead, they think our prints might help wick water off our fingertips or allow our skin to stretch ore easily, which can protect it from damage and help prevent blisters. Other scientits have suggested fingerprints could improve our sense of touch, What we do know for sure is that no two people's fingerprints are the same, even among identical twins. - V. Patteson Lombardi, PhD, research assistant professor of biology at the University of Oregon

Why do you think we have fingerprints?...

Fingerprinting Merit Badge Requirements

Fingerprinting Merit Badge

FINGERPRINTING

  1. Give a short history of fingerprinting. Tell the difference between civil and criminal identification.

  2. Explain the difference between the automated fingerprint identification systems (AFIS) now used by some law enforcement agencies and the biometric fingerprint systems used to control access to places like buildings, airports, and computer rooms.

  3. Do the following:

    1. Name the surfaces of the body where friction or papillary ridges are found.

    2. Name the two basic principles supporting the science of fingerprints and give a brief explanation of each principle.

    3. Explain what it takes to positively identify a person using fingerprints.

    4. Take a clear set of prints using ONE of the following methods.

      1. Make both rolled and plain impressions. Make these on an 8-by-8-inch fingerprint identification card, available from your local police department or your counselor.

      2. Using clear adhesive tape, a pencil, and plain paper, record your own fingerprints or those of another person.

      3. Show your merit badge counselor you can identify the three basic types of fingerprint patterns and their subcategories. Using your own hand, identify the types of patterns you see.