I. Introduction
Border control is currently one of the most worrisome topics within the European Union (EU) and many other parts in the world [1]–[4]. In the case of EU, illegal entrance in a country may guarantee the free movement through the whole EU area and triggers the necessity to increase the control in the Schengen borders. More than a million migrants and refugees crossed into Europe in 2015, mostly due to conflict in countries, such as Syria, Afghanistan, or Iraq. The vast majority of the asylum applications in EU and European Free Trade Association (EFTA) states arrived by sea but some migrants crossed over land, principally via Turkey and Albania. This concern highlights the necessity of analyzing and solving all the possible issues related to border crossing. The increasing flow of people on borders involves a reduction of time for border services to check travel documents and identity [5], increasing the risk of fraud. More generally, reasons of fraud are linked not only to the advantages to cross borders but also to perform crimes under another identity, get undue social allocations, etc. All the process triggers high costs, including production costs and social costs, and further resources.