THE USE OF SUDAN III SOLUTION FOR IDENTIFYING SWEAT MARKS IN FINGERPRINT EXAMINATION

Abstract

The reliability of the obtained results and conclusions is ensured by the use of a set of methods of analysis, generalization and comparison, which in combination with experimental methods made it possible to argue the effectiveness
of aqueous-alcoholic solution of Sudan III to detect greasy traces on non-porous, including wet, surfaces. Scientific
novelty. The efficiency of detection of fatty traces, suitable for their further identification within the forensic dactyloscopic examination, on non-porous, in particular wet, surfaces, using aqueous-alcoholic solution of Sudan III, is
substantiated and experimentally proved. Conclusions. Comparing the physicochemical properties of Sudan III with
other most commonly used azo dyes, its practical significance is evidenced. The advantages of using Sudan III solution
for detection of fat traces are specified. The effective use of Sudan III solution for the detection of greasy traces on
non-porous, in particular wet, surfaces, and their low suitability for the detection of greasy traces on porous surfaces
due to penetration into the pores of the material have been experimentally confirmed. The proposed methodological
principles of application of Sudan III solution, set out in the experimental part of the study, clarify the method of
detection of fatty traces and form the basis for the development of appropriate guidelines aimed at improving the
efficiency of detection of traces of papillary patterns for fingerprinting