What are the different types of physical evidence in forensic science?

What are the different types of physical evidence in forensic science?

Physical evidence in forensic science includes items like fingerprints, hair, fibers, and weapons. Each type can provide crucial information.

Can you explain how fingerprints are used as evidence?

Fingerprints are unique to each individual. They can be collected from crime scenes and matched to suspects to establish presence.

What about trace evidence like hair and fibers?

Trace evidence, such as hair and fibers, can link a suspect to a crime scene. They are often analyzed using microscopy and DNA testing.

Are there any limitations to using physical evidence?

Yes, physical evidence can be contaminated or misinterpreted. It's important to handle and analyze it carefully to ensure accuracy.

How do investigators collect and preserve physical evidence?

Investigators use specific techniques like packaging in clean containers and maintaining a chain of custody to preserve evidence integrity.