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Study: Airborne DNA Extracted for Forensic Analysis

In a groundbreaking study, researchers have shed light on the significance of airborne human DNA in forensic analysis, particularly in cases where traditional evidence like fingerprints and trace materials have been wiped clean. The study, conducted by a team led by Flinders University in Australia, highlights how offenders cannot entirely prevent the release of their DNA into the environment.

According to the research findings, human DNA can be detected in the air following activities as routine as speaking or breathing. This revelation challenges the notion that offenders can completely conceal their genetic presence. The study emphasizes the presence of "environmental DNA" (eDNA) in various forms, including solid surfaces, soil, water, and air, offering new avenues for gathering crucial evidence.

The researchers compared samples collected from air-conditioning units in both residential and office settings. They discovered that human DNA could be found on these units' surfaces as well as in the air. Interestingly, air samples were indicative of more recent occupancy, while surface samples reflected prior use.

Emily Bibbo, a PhD candidate at Flinders University's College of Science and Engineering and the study's author, emphasized that air circulating through air-conditioning systems can collect human DNA, supporting the notion that DNA can settle on surfaces through airborne means.

Mariya Goray, a senior lecturer in forensic science at Flinders University, highlighted the significance of these findings. She noted that these new methods could not only help identify regular occupants of a room but also visitors. Goray emphasized that even individuals with forensic knowledge would find it challenging to completely prevent the release of their DNA into the environment.

The study underscores the potential of environmental DNA detection in various settings, including soil, ice, air, and water, to enhance crime scene investigations. With the ability to detect DNA even after surfaces have been cleaned or concealed, these methods offer promising avenues for uncovering crucial evidence in criminal cases.

April 4, 2024 10:33 a.m. 3760

#breakingnews #worldnews #headlines #topstories #globalUpdate #dxbnewsnetwork #dxbnews #dxbdnn #dxbnewsnetworkdnn #ForensicScience #DNAForensics #CrimeSceneAnalysis #FlindersUniversity #AirborneDNA #EnvironmentalDNA #EDNA #CrimeForensics #DNAEvidence #GeneticForensics #ForensicResearch #CriminalInvestigation

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