When it comes to the issue of assessment, the question on how successful we are in fighting corruption is freqently raised by policy makers, corruption fighters, academia, civil society and media. As a result, significant efforts have been made in developing various corruption measurement tools to capture corruption situation and anti-corruption efforts among different countries. Some of the tools are for instance, Corruption Perception Index, Bribe Payer index, World Governance Indicators, Corruption Barometer, Control of Corruption Indicators with numerous forms of the checklists.