The subject of this paper is the analysis of sources regarding the ways of acquiring qualified cheap labour force to work for public administration in Ancient Rome. In many papers about organization and functioning of that administration occurs the phenomenon of exploiting the highly qualified slavers. One of more important issues within this problematic area are the ways of public slavers acquiring. The purpose of this paper is to confront existing conceptions, accepted in Romanistic literature, with the results of sources analysis. Final conclusions include a kind of correction of existing conceptions. The result of this paper is also presentation of timeless mechanisms of searching cheap highly qualified labour force for public administration work.