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Issue 12, 2018
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Sex determination from fingermarks using fluorescent in situ hybridization

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When fingermarks are not suited for automated fingerprint identification, caused by for instance, poor development or when no match can be found in the fingerprint database, the chemical composition can be used to extract additional information about the donor of the fingermark. DNA potentially allows identification, however, the recoverable amount of DNA present in fingermarks is often too low to allow successful DNA-profiling. Therefore, in this research we focus on a method of in situ analysis of the available nucleated cells in fingermarks without prior DNA sampling and extraction and target specific DNA sequences in these cells to reveal potential additional donor profile information. To prove the principle, we determine the sex of the fingermark donor by targeting specific sequences on the X and Y chromosome using fluorescent in situ hybridization. Successful determination of the donor's sex based on the presence of male or female cells in the fingermark depositions is demonstrated. Powder dusting and lifting the fingermarks with gelatine lifters does not influence fluorescent in situ hybridization as male and female nucleated cells can be established reliably in fingermark residues. We show that both biometric information and donor characteristics can be obtained from fingermarks including both the morphological and the chemical properties of the fingermark.

Graphical abstract: Sex determination from fingermarks using fluorescent in situ hybridization

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Publication details

The article was received on 05 Dec 2017, accepted on 21 Jan 2018 and first published on 23 Jan 2018

Article type: Paper
DOI: 10.1039/C7AY02805A
Citation: Anal. Methods, 2018,10, 1413-1419
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    Sex determination from fingermarks using fluorescent in situ hybridization

    A. van Dam, A. van Weert, K. Falkena, C. Weymans, A. D. Kloosterman, S. A. G. Lambrechts, T. G. van Leeuwen and M. C. G. Aalders, Anal. Methods, 2018, 10, 1413
    DOI: 10.1039/C7AY02805A

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