FIELD: forensic technical expertise.
SUBSTANCE: invention relates to the field of forensic technical expertise and relates to a method for determining the timing of handwritten inscriptions on documents. The method includes document analysis using chromatography, stroke mass measurement and Raman spectroscopy of dye samples when exposed to radiation with wavelengths of 532 and 785 nm. The timing of the inscriptions is determined by mathematical processing of the obtained data using the analysis of multidimensional data by the method of principal components.
EFFECT: extending the deadline for determining the time for applying the inscriptions and reducing the likelihood of error.
1 cl, 9 dwg, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETERMINING AGE OF PRINTED TEXTS ON PAPER USING RAMAN SPECTROSCOPY | 2023 |
|
RU2808949C1 |
| METHOD OF DETERMINATION OF TIME OF APPLICATION OF HAND-WRITTEN INSCRIPTIONS ON DOCUMENTS USING COMBINATIONAL DISPERSION CHROMATOGRAPHY AND SPECTROSCOPY OF COLORANT SAMPLES AT ACTION OF RADIATION WITH WAVELENGTH 785 OR 532 NANOMETERS | 2013 |
|
RU2549548C1 |
| METHOD OF DETERMINING PERIOD OF MAKING REQUISITES IN DOCUMENTS FROM RELATIVE CONTENT IN VOLATILE SOLVENT MARKS THEREOF | 2009 |
|
RU2399042C1 |
| METHOD FOR DETERMINING THE TIME FOR APPLICATION OF COLORING SUBSTANCES ON THE CARRIER | 2022 |
|
RU2783783C1 |
| METHOD OF DETERMINING AGE OF STROKES OF COLOURING MATTERS OF DETAILS OF DOCUMENTS ON DYNAMICS OF THEIR DISCOLOURATION | 2013 |
|
RU2533315C1 |
| METHOD FOR DETERMINING PRESCRIPTION OF DOCUMENT COMPILATION BY WRITTEN MATERIALS | 2015 |
|
RU2604142C1 |
| METHOD OF DETEMINING DOCUMENT CREATION TIME FROM BALL-POINT PEN MARKS OR STAMP INK IMPRINTS | 2010 |
|
RU2424502C1 |
| METHOD FOR DETERMINING REMOTENESS OF WRITING OF WRITTEN TEXTS AND OTHER WRITING MATERIALS | 2006 |
|
RU2296315C1 |
| METHOD OF DATING HANDWRITTEN TEXTS AND OTHER WRITTEN MATERIALS | 2011 |
|
RU2480736C2 |
| METHOD OF DATING MANUSCRIPTS | 2011 |
|
RU2471173C2 |
