fingermarks during packaging and transport of forensic exhibits K Draxel 123 I Jullens 4 A de Ronde 1 B Kokshoorn 13 C de Poot 125 1 Amsterdam University of Applied ID: 1045561
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1. Loss and relocation of DNA and fingermarks during packaging and transport of forensic exhibits K. Draxel1,2,3, I. Jullens4, A. de Ronde1, B. Kokshoorn1,3, C. de Poot1,2,51Amsterdam University of Applied Sciences, 2VU University Amsterdam, 3Netherlands Forensic Institute, 4Dutch National Police, 5Police Academy of the NetherlandsPackaging, transport & storagePaper Evidence BagBreathable Evidence BagBreathable Evidence BagDifferent pieces of evidenceThe packaging, transport, and storage of forensic exhibits represent integral steps in the forensic investigation process, ensuring the preservation and integrity of the traces found on items until their subsequent examination. However, limited research shows that loss and relocation of traces can occur during these vital steps1-3. The ‘No Trace to Waste’ project (started January 2023) aims at gaining more knowledge on the extent of this loss and relocation of DNA and fingermarks during the packaging, transport, and storage of forensic evidence. Ultimately, the obtained insights will be used to optimize current procedures. BackgroundDNA, fingermarks & tracers
2. First experiment at music festival Lowlands 2023MethodologyBreathable Evidence BagDroppedFolded in sterile sheetBreathable Evidence BagFoldedBreathable Evidence BagTwo storage conditions: Carefully placedThrown inSurvey on demographic data of participantsHugging with fluorescent hand lotionPackaging & storage under six different test conditionsPhotos of the front & back of t-shirts before & after packaging
3. BeforeAfterA. Heatmapping?B. Relative distanceC. RatiosCounting cells with fluorescent signalData analysis (in progress) Available dataPhotos of ~270 participants (front and back per participant)Captured before and after packagingTwo colors of fluorescent signal (one color per participant)Investigate general dynamics of trace relocation during packaging, transport & storageIdentify packaging & storage conditions with least amount of relocation of traces Iteration of experiments with latent DNA Objective
4. References: (1) Goray, M., van Oorschot, R. A. H., & Mitchell, J. R. (2012). DNA transfer within forensic exhibit packaging: Potential for DNA loss and relocation. Forensic Science International: Genetics, 6(2). (2) Stella, C. J., Meakin, G. E., & van Oorschot, R. A. H. (2022). DNA transfer in packaging: Attention required. Forensic Science International: Genetics Supplement Series, 8. (3) Mercer, C., Taylor, D., Henry, J., & Linacre, A. (2023). DNA accumulation and transfer within an operational forensic exhibit storeroom. Forensic Science International: Genetics, 62. International questionnaireSurvey to gather information on currently applied practices worldwide & the encountered concerns by forensic professionals regarding packaging, transport & storage Are you interested in participating in this survey? Then click the link or scan the QR code and leave your contact details! Google forms: https://forms.gle/CTEZzgKVYNDzBqXF7Future outlook AcknowledgementsThis research is funded by the RAAK-PRO research grant of the Dutch Research Council, Division Task Force for Applied Research SIA. Grant number: RAAK.PRO04.058The experiments were facilitated by Lowlands Science 2023.Want to know more? Contact me! Katharina Draxel, PhD studentAmsterdam University of Applied Sciencesk.draxel@hva.nl