Over the last few years rapid progress has been made in moving from conceptual studies, "whitepapers" and initiatives to the actual deployment of e-Government systems [13]. In this paper we present the case study of an existing e-Government system (eLaw) which already supports key legislative processes in the country of Austria1. The study has been performed in the context of the EU FP6 project "eJustice".We present a detailed system and workflow representation referring to the example process of changing a federal law in Austria. Since such processes and their results, i.e. the laws of a country, have an enormous impact on society, they need to be secured against external and internal alteration, be it inadvertent or malicious. This is even more important in the electronic world.Instead of discussing the obvious security requirements like virus protection or network-level access control, our focus is on an often neglected form of organisational security and control properties called separation of duties. We will analyse and discuss a set of these in terms of the described eLaw process.