This chapter starts by observing that public responsibility is still understood in very different ways throughout the world, depending largely on the political, social and cultural background of each State. The Chinese, Middle Eastern, African and Central European examples presented bear witness to this reality, and in particular to the close link between the development of public responsibility and the emancipation of the individual from the State and the collectivity. The great diversity of national and supranational practices on a world-wide scale – in a context marked by global challenges and by the still essential role of the Nation-State framework – makes a comparative legal approach essential, not only to prevent unwarranted standardization, but also to bridge differences and ‘further compatibility’.