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Updated: May 9, 2026

Enhanced Genetic Analysis of Single Human Bioparticles Recovered by Simplified Micromanipulation from Forensic ‘Touch DNA’ Evidence

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Practical relevance of pattern uniqueness in forensic science.

Paul T Jayaprakash¹

¹Forensic Science Program, Universiti Sains Malaysia, Kubang Kerian, 16150 Kelantan, Malaysia. ptjaya@kb.usm.my

Forensic Science International

|July 16, 2013

Summary

Forensic science individualization, supported by physical matching, is crucial for criminal investigations. Uniqueness, a fundamental tenet, provides definitive evidence, unlike probabilistic DNA profiling.

Keywords:

Forensic science Indeterminism in causations Individualization by physical matching Patterns in the state of nature Practical relevance of pattern uniqueness

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Area of Science:

Forensic Science
Pattern Evidence Analysis
Identification Science

Background:

Debates question the relevance of individualization and uniqueness in forensic science.
Arguments suggest applying probabilistic methods, like DNA profiling, to all identification cases.
Critiques overlook the significance of physical matching in establishing uniqueness.

Observation:

Case examples demonstrate the practical value of pattern matches, including physical matching.
Physical matching and natural patterns involve complex, non-countable characteristics.
Observational methods are valid for generating tangible and credible forensic evidence.

Findings:

Uniqueness is a fundamental paradigm supporting individualization in forensic identification.
The indeterministic nature of pattern characteristics provides scientific support for uniqueness.
Probabilistic approaches used for DNA are unsuitable for other pattern evidence due to differing causal pathways.

Implications:

Individualization through uniqueness provides definitive facts and valuable leads in criminal investigations.
Accepting and addressing errors in forensic practice is essential for improvement.
Maintaining the principles of uniqueness and individualization benefits forensic science and investigations.