<p>Measuring the level of corruption in a country is inherently problematic in view of its secretive nature. DFID offices use information from a combination of sources including: the Transparency International Corruption Perceptions Index, the Global Integrity Index, data from the World Bank and other institutions.</p><p>DFID programmes offer a wide array of assistance to strengthen the ability of countries to tackle both large scale and petty corruption. These include measures such as strengthening public procurement and audit, through to enabling civil society to hold their authorities to account.</p>