Which of the following is NOT an advantage of DNA analysis in crime scene investigations?

DNA analysis in crime scene investigations is a powerful tool that provides numerous advantages, particularly in identifying and linking individuals to criminal activity. However, obtaining witness testimonies is not something that DNA analysis directly facilitates; therefore, it does not represent an advantage of this technique.

When DNA evidence is collected from a crime scene, it can be used to identify suspects by matching biological samples with profiles in databases. Additionally, it plays a crucial role in linking related cases, as DNA can connect multiple crimes committed by the same individual. In paternity and maternity cases, DNA analysis can definitively establish biological relationships, underscoring its broad applications in forensic science.

Witness testimonies, on the other hand, rely on human recollection and perception, which can be influenced by various factors including memory distortion, biases, and emotional responses. Therefore, while testimonies are vital to investigations, they are separate from the capabilities of DNA analysis and cannot be obtained through this scientific method.