Detectives may be able to obtain a clear set of fingerprints even on wet surfaces by using a powder made up of zinc oxide nanoparticles, Australian researchers are suggesting. Dr Andrew McDonagh, an ...

A powder made up of zinc oxide nanoparticles can give crime fighters a clearer image of fingerprints, even on wet surfaces, say Australian researchers. Dr Andrew McDonagh and colleagues, of the Centre ...

Despite the vast quantity of fingerprint treatments currently available, examiners continue to be frustrated by a number of ‘difficult’ substrates. Multi-coloured and densely patterned backgrounds, ...