Urgent gelatin onto fingerprints then exposing it to a particular vapour can decide when the prints had been made



Chemistry



30 July 2022

A pipette by a fingerprint

Which got here first, the fingerprint or the textual content within the doc it was lifted from?

Cultura Artistic RF/Alamy

A way for figuring out whether or not a fingerprint appeared on a chunk of paper earlier than or after textual content was printed on it may assist resolve fraud instances. The strategy makes use of normal forensic instruments and so could be easy to place to make use of.

In forensics, the “when” is usually as necessary because the “who”. In a case, for instance, there may very well be a state of affairs the place somebody is suspected of tampering with a will or contract by printing …

By 24H

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