How can a kid be a fingerprint detective? - SPARKLEBOX
How To Be a Fingerprint Detective?

How To Be a Fingerprint Detective?

be a fingerprint detective


From Spongebob to Superman, fingerprints are everywhere. Fingerprint science has been used extensively in crime dramas and spy novels. Remember how in movies, fingerprint detectives find out who the criminal is using just the marks on the weapon? People have been using fingerprints for a long time. 

The science behind fingerprints is pretty cool. The fingerprint patterns on your hands are unique, and only you, no other person, be it your parents, your best friends, or even your identical twin, will share the same fingerprint.

The chances of two fingerprints being similar is 1 in 64 trillion. For their ability to identify different individuals, fingerprints have been used extensively in criminal investigations. 

Did you know? The 1st fingerprint bureau in India was established in 1897 in Kolkata.

Fingerprints are made up of tiny ridges, swirls, and whorls. Your fingerprint pattern is made randomly. They also help you hold onto things and help you do fun activities. 

If you’re wondering how a kid can be a fingerprint detective, the whole activity can be a lot of fun and, at the same time, teach your kids how the fingerprinting activity is used in everyday life. 

How can a kid be a fingerprint detective?

How can a kid be a fingerprint detective?

Fingerprint fun is easy to arrange and only requires a few things. You should arrange for the following items: 

  • A pencil
  • Magnifying glass
  • Some tape 
  • Cocoa powder 
  • An art brush
  • White paper
  • Clear glass or jar

To be a fingerprint detective, you will need the following things:

  • Clear tape
  • White paper
  • Magnifying glass
  • Pencil

To lift prints from a surface, you’ll also need:

  • Cocoa powder or chalk dust
  • A clear glass jar

Fingerprint detective activities for preschoolers

fingerprint detective for kids

Steps to be a fingerprint detective for preschoolers are as follows:

Step 1:

For smaller children, help them trace their hands on the white paper. Older children can do this independently.  It is important while performing art & craft for nursery class students.

Step 2:

Take a different piece of paper, and scribble hard on it till a small area of the paper is covered with graphite. 

Step 3:

Ask your kids to rub one of their fingers, here it’s a good idea to use the baby finger on the graphite area till it’s covered with graphite. 

Step 4:

Now, slowly help the kids place their baby finger, pinky, on the sticky side of the tape. After that, carefully lift their finger off the tape. This should result in a clear fingerprint being visible on the tape. 

Step 5:

Have your kids carefully place the tape, with their fingerprint, on the traced hands on the sheet of paper they used earlier. Be careful to put the tape face down so it doesn’t cause any problems. 

Step 6:

Repeat this process with every single finger of the kids, don’t forget the thumbs until they have all of their fingerprints on the paper sheet with their traced hands. Don’t forget to do the other hand too. 

Note – While fingerprints for kids is an enjoyable activity. Younger kids may require some help from you. 

Step 7:

If you want to understand how a kid can be a fingerprint detective, let your kids take their time to inspect their fingerprints with magnifying glasses. 

If you lack a magnifying glass, that’s alright too, since fingerprint patterns can also be observed with the naked eye, albeit with a little less detail. Ask them to identify patterns in the fingerprints and if they can find any similarities between different fingerprints. 

Note- There are 3 types of general fingerprint patterns, the Loop, the Arch, and the Whorl. Loop is the most common type of fingerprint, while whorl and arch type fingerprints are rarer.  

How to lift prints and be a fingerprint detective?

These steps will further aid in understanding how a kid can be a fingerprint detective.

Step 1:

Have your kids grab the glass jar tightly to make some clear fingerprints on the glass jar. You can do this individually with each finger, or you can do it together with all fingers if the glass jar is big enough.  

Step 2:

Have your kids gently dust chalk/cocoa powder using the brush on the places where your kids left their fingerprints.

Step 3: 

Help them blow away the excess chalk/cocoa powder and stick a piece of tape on the residue carefully. 

Step 4:

Have your kids carefully lift the piece of tape from the glass jar without damaging the fingerprint. This step may require some adult supervision. 

Step 5:

Stick the tape with the fingerprint on white paper for easy identification. Use black paper if you used chalk powder. Now ask the kids to match the recent fingerprint patterns with the old ones and try to find their origins.  Whenever you are performing art & craft for nursery class or any experiment always take precautions especially around kids.


The whole activity, including fingerprints for kids, can be joyous and fulfilling. A kid can be a fingerprint detective, quite easily enjoy fingerprint fun and learn why fingerprints play such an essential role from administration to crime scene investigation. 

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