Migration of latent fingermarks on non-porous surfaces: observation technique and nanoscale variations

Krastio T. Popov, V. G. Sears, Benjamin J. Jones

    Research output: Contribution to journalArticlepeer-review

    22 Citations (Scopus)
    594 Downloads (Pure)


    Latent fingermark morphology was examined over a period of approximately two months. Variation in topography was observed with atomic force microscopy and the expansion of the fingermark occurred in the form of the development of an intermediate area surrounding the main fingermark ridge. On an example area of a fingermark on silicon, the intermediate region exists as a uniform 4nm thick deposit; on day 1 after deposition this region extends approximately 2µm from the edge of the main ridge deposit and expands to a maximum of ~ 4µm by day 23. Simultaneously the region breaks up, the integrity is compromised by day 16, and by day 61 the area resembles a series of interconnected islands, with coverage of approximately 60%. Observation of a similar immediate area and growth with time on surfaces such as Formica was possible by monitoring the mechanical characteristics of the fingermark and surfaces though phase contrast in tapping mode AFM. The presence of this area may affect fingermark development, for example affecting the gold distribution in vacuum metal deposition. Further study of time dependence and variation with donor may enable assessment of this area to be used to evaluate the age of fingermarks.
    Original languageEnglish
    Pages (from-to)44–56
    Number of pages13
    JournalForensic Science International
    Early online date6 Mar 2017
    Publication statusPublished - Jun 2017


    Dive into the research topics of 'Migration of latent fingermarks on non-porous surfaces: observation technique and nanoscale variations'. Together they form a unique fingerprint.
    • Microscopy in forensic science

      Jones, B. J., 17 Sept 2019, Springer handbook of microscopy. Hawkes, P. W. & Spence, J. C. H. (eds.). Cham: Springer, p. 1507-1523 17 p. (Springer Handbooks).

      Research output: Chapter in Book/Report/Conference proceedingChapter

      Open Access
      4 Citations (Scopus)
      820 Downloads (Pure)

    Cite this