What is the most reliable method for identifying a person?

Fingerprints are considered one of the most reliable methods for identifying a person due to their uniqueness and permanence. Each individual's fingerprint pattern is distinct and remains unchanged throughout their life, making it possible to match a fingerprint found at a crime scene with a known individual. This method has been widely used in forensic science and law enforcement, and its accuracy has been validated over many years of practical application.

While facial recognition can be useful, it is subject to variations based on angles, lighting, and similarities between individuals. DNA testing is highly accurate and serves as a strong means of identification, but it can be more time-consuming and resource-intensive compared to the immediate results provided by fingerprint analysis. Witness testimony can be highly unreliable, as it can be influenced by memory biases or lack of clarity, making it the least reliable option for identification. Therefore, among these methods, fingerprints are favored for their practicality and proven track record in consistently providing accurate identification.