The object of this work is development of a strategy to improve methods of expertise process counterfeited graphics, in order to combat production and dissemination. Graphics from a wider field of securities are analyzed. Most of the experiments carried out the banknotes, because they are mostly the subject of counterfeiting. Analyses were conducted in a wide spectrum of wave lengths, ranging from 254 nm to 1000 nm. The methods and procedures for multiple scanning and input into a digital database are presented. The database has been created just for purposes of barrier scanning and allows comparison of suspicious securities in order to determine the indicative and to create statistics. Statistical data selectively distributed according to the parameters are necessary to prevent dissemination and detect the source of counterfeit prints as soon as possible. It was experimentally shown that expansion method of analysis of the quality of the process, thus confirming the first hypothesis. Barrier scanning was conducted by forensic devices docucenter expert and stereo microscope. The link with the computer is software PIA 6000. These instruments enable separation of the spectrum in specific ranges, unlike the commercially available devices for determining authenticity. Analysis of the UV light has been expanded to three parts of the spectrum, and analysis of the IR light on thirteen components of the spectrum. That open a new area of expertise, based on determining the authenticity of multiple scanning under various parameters and changing light. Used the property that each color, depending on material and composition, given different information by UV and IR light. Conference counterfeit securities to infrared and ultraviolet light enables to find specific wavelengths which deferred dyes fake and original. The second hypothesis is proved: multiple scanning in the invisible part of the spectrum gives information about the technique and place of counterfeit making. Concrete examples clarified the importance of checking out the area visible to the human eye. Hypotheses were confirmed by quantitative and qualitative analysis based on separation of the spectrum in specific ranges. The study was expanded with analysis of historical securities. I found the deficiencies of protective elements and in accordance with a third hypothesis give the proposals of corrections in future editions. The proposals are based on experimental work, the experiences and patents that are available for the protection of banknotes, but not yet used for this purpose.