Abstract. Norms are implemented by administrative procedures. This paper addresses the delegation of control in administrative procedures. Instead of having to check all details, a controlling actor can trust the data provided by other actors, provided they can demonstrate to be `in control'. In this paper we provide a conceptual analysis of situations in which control has been delegated. The approach is based on an analysis of the dependencies between activities performed by the actors involved and on evidence documents. To motivate and illustrate the approach, we discuss a case study about the redesign of EU customs procedures for collecting excise duties.