Forensic Science: DNA Evidence

Deoxyribonucleic acid

A double helix.

Individual evidence.

A technique used to identify individuals based on their unique DNA profiles.

To match biological evidence from a crime scene to a suspect.

Class evidence can be associated with a group, while individual evidence can be linked to a single source.

It can provide strong evidence of a suspect's presence at a crime scene.

Blood, hair, saliva, skin cells, and other bodily fluids.

Carefully gathering samples to avoid contamination and preserving them for analysis.

By proving that the DNA found at the crime scene does not match the suspect's DNA.