Forseveral decades, numerous citizens' assemblies involvingcitizens in public decision-makinghavebeen multiplying at all levels of power.This development of a more participatory,deliberative or collaborative democracy implies the transformation of public administrationsand public servants.Various studies show that civil servants are keya ctors in the organization of participatory processes,i nt heir institutionalization and in their follow-up.H owever,they remain under-analyzed. In this chapter,we define and analyzemore specificallythe profile and role of public servants specialized in participation,thosewecalldeliberative public servants.Then, we review the results of research on the relationship between civil servants' perceptionofparticipation and the processes they implement.Weconclude by identifying research perspectivesfor the analysis of public officials and CAs.