Latent Prints

Visible prints are prints that can be (a)   .

(a)   prints are impressions left by friction ridge skin on a surface. Most of the time these prints are invisible and cannot be seen by the naked eye.

Prints may be collected by revealing them with a dusting of ____________.

• tape

• light

• powder

• sand

After dusting the print, investigators will lift the print up with a piece of clear (a)   .

Name the most common animal whose hair is used for fingerprint brushes.

(a)  

Some detectives use ______________ powder and UV lights to help them find latent prints on multi-colored or dark surfaces.

• black

• fluorescent

• magnetic powder

• ninhydrin

____________ powder works best on getting prints off of shiny surfaces or plastic bags/containers.

• Magnetic

• Fluorescent

• Super glue

• Ninhydrin

Tags

NGSS.MS-PS1-2

What method is also called the super glue method?

• Ninhydrin fuming method

• Elmer's fuming method

• Cyanoacrylate fuming method

• Chemical fuming method

Ninhydrin is a chemical that bonds with the amino acids in fingerprints and will provide a ____________ color. It is used to lift prints from paper and cardboard.

• blue/green

• green/yellow

• purple/brown

• blue/purple

In the super glue method, the glue is heated up in a sealed chamber that creates a vapor that turns the prints __________.

• black

• red

• white

• purple