a visible fingerprint that happens when fingers with blood, ink, or some other substance on them touch a surface and transfer the pattern of their fingerprint to that surface

How many times will your fingerprint pattern change throughout your life?

Which print type is NOT easily seen with the naked eye?

Sweat glands which are found in hands and feet. Produce watery sweat.

Way(s) to develop latent prints.

Which is NOT a way to physically develop a print?

Which physical development method listed is BEST for wet surfaces?

This is a chemical developer. It reacts with salts in residue. Used less. Ineffective on wet surfaces or surfaces covered in salts or chloride.

This is a chemical developer. It reacts with fats in residue when heat is applied. Produces a short lived, yellow print. Best on porous surfaces.

This is a chemical developer. It reacts with proteins in residue. Best on porous surfaces. Takes up to 10 days to develop a purple print.

This is a chemical development method. It reacts with residues to make a permanent, hard print. Best on nonporous surfaces. Requires head and a fuming box.

This is a chemical development method. Silver is deposited on a print and reacts with fats in the residue. Good for wet evidence. Produces dark grey print.

2 ways to change light to help develop prints.

The first thing fingerprint examiners should do.

There is a legal requirement on how many minutiae points must be the same before a print can be called "a match".

Fingerprint examiners complete these steps (in order) after fingerprints are collected.