Pourus paper treated with fingerprint enhancement chemical Ninhydrin being placed into an enhancement oven for evidence

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No6 part of sequence showing the sequential examination of latent fingerprints on porous paper using the enhancement chemical Ninhydrin. The paper once dipped in the chemical is then placed into a oven with humidity to enhance the fingeprints.

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Size: 6475px × 4316px
Location: Cheshire, UK
Photo credit: © DGDImages / Alamy / Afripics
License: Licensed
Model Released: No

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