This paper addresses the personal linkages between the public service and the legislature that emerge because public servants pursue a political mandate. There are concerns that the representation of public servants in parliaments generates a conflict of interest. We present a cost-benefit calculus and analyze specific legal provisions for the German Laender to understand the selection of public servants into parliaments. We find that a legal incompatibility of a position in the public service and a political mandate decreases and a compensation for having to hold one's office in abeyance increases the fraction of public servants in Laender parliament