He is a member of the Bar Association of Thessaloniki and has worked as a lawyer since 1994. For the last seven years he has also sat on the scientific committee of the journal ‘Theory and Practice of Administrative Law’. Asst. Prof. C. Papageorgiou has participated in numerous conferences at European universities. His research interests lie mainly in the area of the domestic and international legal protection of the right to religious freedom and relations between State and Church, especially in the areas of property and the tax status of religions.