Accountability of public administration is an increasingly complex concept for public administration and is becoming increasingly difficult to assure in an era marked by structural reforms of the administration. In the last quarter of a century, the modernization of public administration has become a major concern for most European countries. Under the sign of the New Public Management doctrine, several reforms have been undertaken, the objectives of which were to modernize public services, to efficiently manage public finances, to develop effective public policies, and to streamline political and administrative relations. Within these reforms, the accountability of the public administration was the indispensable condition for the successful realization of the planned activities.