How do forensic techniques enhance criminal investigations?

Forensic techniques enhance criminal investigations primarily by analyzing physical evidence, which can establish connections between the crime scene and potential suspects. This scientific approach allows investigators to gather objective data that can support or refute a suspect's involvement in a crime. For instance, fingerprints, DNA, ballistics, and trace evidence can provide direct links or associations that are crucial in building a case.

Unlike solely relying on witness testimonials, which can be unreliable and influenced by various factors, forensic evidence presents a more tangible and scientifically validated basis for drawing conclusions. Additionally, forensic techniques do not operate by eliminating suspects instantly, as investigations typically involve multiple leads and avenues of inquiry. Finally, while maintaining the confidentiality of certain investigation details can be essential for various reasons, it is not a primary function of forensic techniques; rather, it is about obtaining valid evidence to support the investigation. Therefore, the analysis of physical evidence is what truly enhances the investigative process.