Micronised Egyptian blue pigment: A novel near-infrared luminescent fingerprint dusting powder

• Micronised Egyptian blue pigment used as safe, simple treatment to visualise latent fingerprints.
• Treated fingerprints visualised using intense near infrared luminescence of pigment.
• Allows detection of latent fingerprints on highly patterned and reflective surfaces.

In this paper we demonstrate that micronised Egyptian blue pigment can be used as a safe and simple material to visualise latent fingerprints on non-porous surfaces as near-infrared luminescent impressions. This allows the detection of latent fingerprints on highly patterned and reflective surfaces that have proven challenging with existing techniques.

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