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ເທັກ​ໂນ​ໂລ​ຈີ ໃນ​ການ​ພິມ ລາຍ​ມື​ໃໝ່ ອາດ​ຊ່ວຍ​ແກ້ໄຂ ບັນ​ຫາ​ອາ​ຊະ​ຍາ​ກຳ​ເກົ່າໄດ້
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A new mass spectroscopy machine is helping forensic scientists who are looking for a much better view of fingerprints on objects used in a crime. The current methods of making a copy of a fingerprint may not be good enough and DNA swabbing can damage evidence. VOAs Deborah Block reports.

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