In the lust quarter of the twentieth century the role of law in public administration came under attack as fostering bureaucracy. especially in the move to New Public management . The focus input and procedures supposedly characteristic of the Weberian model of public administration opposed to the managerial focus on output. And achievement - is very often attributed to a itself by critics of bureaucracy as well as public manager themselves. A comparative study of the role 0 law in public administration shows that these types of criticizing rest upon double misunderstanding what law is today and What Max Weber meant when analyzing the systems of public authority 11 century ago.