•Ageing of fingermarks is monitored by electrochemical impedance spectroscopy.•The impedance spectra are affected by physical variations of fingermark with time.•Spreading of the mark and roughness modifications affect the impedance values.•Electrochemical parameters can be plotted to calculate the fingermark ageing curve.•The mark and the substrate contributions to the impedance can be differentiated.
Forensic Science International – Elsevier
Published: Apr 1, 2017
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