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Article

Impact of face-derived DNA on touch DNA deposition on cell phone screens.

International journal of legal medicine - 1 Mar 2026

Kisberi Juliany Barreto, Nascimento Ingrid, Iwamura Edna Sadayo Miazato, Ferreira Marcelo Alves, Fridman Cintia

Abstract excerpt

Advancements in the sensitivity of commercial kits have enabled the genotyping of trace samples, establishing touch DNA as a valuable tool in forensic genetics, especially when fingerprints are absent or lack detail. However, analysis remains challenging due to various factors, including sex, age, surface type, and DNA source. This study investigated whether touching the face before depositing touch DNA on cell...

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PMID: 41168525
DOI: 10.1007/s00414-025-03649-1

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