Procedure for Lifting Finger Prints from a Glass Surface

6:40 AM / Posted by DiMon Green / comments (0)

1. Dip a brush (paint brush) into a bowl or beaker of graphite powder.

2. Lightly brush the fingerprint powder all over the glass surface. Try not to touch the surface...If you touch it you may contaminated it with your fingerprints..even wearing gloves will smear the prints.

3. Use a magnifying glass to find if there are any fingerprints on the surface.

4. If you find a fingerprint take a piece of thick clear masking tape and place on the surface on top of the fingerprint.

5. Finally lift the tape off of the surface and place on a white index card.

The different types of fingerprints

12:40 PM / Posted by DiMon Green / comments (0)



There are three main types of fingerprints. There are visible prints, latent prints and impressed prints (aka Plastic prints).


Visible prints are also called patent prints. These prints are most likely to be left by blood that reveal them in an obvious way. They ususal are like this when a blood, dirt, ink, or grease covered finger comes in contact with a very smooth solid surface and leaves ridge impression that is visible without out having to investigate.


However, Latent fingerprints aren't as obvious as patent fingerprints are. They are formed from the sweat. These prints cannot be identified until there are dusted with graphite or talp.




Impressed prints are also called plastic prints these are indentations left on soft surfaces, such as clay, wax, paint and other variuos sufaces. They are visible and can be viewed or photographed without development.

History of Fingerprints..

12:01 PM / Posted by DiMon Green / comments (2)






These are the different kinds of fingerprints......------->


In the prehistoric days the fingerprints were made on stone or rock. These picture writings of hand prints with slight ridges were discovered in Nova scotia. In Babylon, fingerprints were used on small clay tablets for business trade or transactions. Later in China thumb prints were found on clay seals. In the 14Th century in Persia, many official and confidential government papers had fingerprint impressions on them. Later down the road one of the government officials, a doctor, discovered that no two fingerprints are exactly a like.




Here are some pictures of the different fingerprints there is also one of an actual person hand see if you can identify the difference......

10:27 AM / Posted by DiMon Green / comments (1)


10:21 AM / Posted by DiMon Green / comments (0)


7:06 AM / Posted by DiMon Green / comments (0)


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