Which of the following is NOT listed as a type of scientific identification?

• A. Nuclear DNA
• B. Fingerprints
• C. Comparative medical/dental radiography
• D. Voice analysis

Answer: (D)

This question tests which methods are considered standard, reliable methods for identifying a person in forensic contexts. Nuclear DNA, fingerprints, and comparative medical/dental radiography are all well-established, objective identifiers. DNA analysis provides a genetic profile that is highly individual and stable across a lifetime. Fingerprints are unique patternings that remain constant over time and are routinely matched to databases with validated error rates. Dental radiography involves comparing ante- and postmortem dental structures and records, offering highly specific matches based on the unique dental work and anatomy of an individual.

Voice analysis, while used in some investigations, does not have the same level of reliability or universal acceptance for definitive identification. Acoustic characteristics can be affected by health, aging, emotional state, accent, recording quality, and environmental factors, and there is less consensus on standard methods and error rates. Because of these limitations, voice analysis is not typically listed as a primary type of scientific identification alongside DNA, fingerprints, and dental radiography.