Thames & Kosmos Master Detective Toolkit V2 handleiding

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Thames & Kosmos

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Handleiding

Examining fibers and hairs

Sometimes, all it takes is a tiny fiber

or a single hair found at the scene of a

crime to track down the perpetrator.

After all, it may prove that he was at

the scene. Nevertheless, the analysis

of such evidence is by no means

simple. Try practicing it along with your

detective colleagues on samples of a

few different kinds of material.

Hairs and fibers

You will need:

Magnifying glass

Plastic bag

Paper

Pencil

Adhesive tape

Here’s how:

1. Carefully remove samples of fiber

from several articles of clothing (but

without damaging them!). Tape the

fibers to a sheet of white paper and

write down their source.

2. Examine them under the

magnifying glass and pay careful

attention to their differences:

What do the fibers look like?

What can you say about their

coloring and structure?

3. Practice your skills with a

partner. Have him place a fiber

from one of the articles of clothing

in a plastic bag. Then try to figure out

which piece of clothing it came from,

simply by analyzing the fiber.

WoolWool

Human hairsHuman hairs

Bird featherBird feather

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