Reparto Carabinieri Investigazioni Scientifiche (R.I.S.), Parma, Italy.
Bunderskriminalamt (BKA), Wiesbaden, Germany.
Forensic Sci Int. 2022 Jun;335:111276. doi: 10.1016/j.forsciint.2022.111276. Epub 2022 Mar 16.
In 2020 the Fingerprint Working Group (EFP-WG) of the European Network of Forensic Science Institutes (ENFSI) undertook a collaborative exercise (CE) with the aim of assessing the ability in developing fingermarks on an item constituted of compostable polymers. The test was prepared and managed by the officially established advisory group. The characteristics of the CE are summarised. Different approaches emerged from the outcomes. Multi-Metal Deposition (MMD) was used as reference method for the assessment of the results. It demonstrated to be the more effective and consistent technique for fingermark visualisation on the specific kind of Mater-Bi® compostable polymer used for the test. Alternative techniques, such as Vacuum Metal Deposition (VMD), cyanoacrylate fuming, followed by Basic Yellow 40 dye staining or in its fluorescent forms demonstrated to be effective methods. However, it seems that the operational conditions need to be controlled in order to find the optimal ones. Conversely, data does not support the use of amino acid sensitive techniques.
2020 年,欧洲法医研究所网络(ENFSI)指纹工作组(EFP-WG)开展了一项合作实验(CE),旨在评估在可生物降解聚合物制成的物品上开发指纹的能力。该测试由官方成立的咨询小组进行筹备和管理。总结了 CE 的特点。结果中出现了不同的方法。多金属沉积(MMD)被用作评估结果的参考方法。它被证明是在用于测试的特定类型的 Mater-Bi®可生物降解聚合物上进行指纹可视化的更有效和一致的技术。替代技术,如真空金属沉积(VMD)、氰基丙烯酸酯熏显,随后用碱性黄 40 染料染色或其荧光形式,被证明是有效的方法。然而,似乎需要控制操作条件以找到最佳条件。相反,数据不支持使用氨基酸敏感技术。