In some other chapters of this book we have seen ICTs acting as innovations in the public sphere themselves. Yet, the introduction of ICTs can also have indirect effects. ICTs and informatization can act as catalysts spurring all kinds of innovations. In this chapter we show how ICTs and informatization have acted as catalysts to organizational innovation in the Dutch police system. Informatization challenged the dominant vertical logic of the Dutch police system through the use of a novel, horizontally oriented, form of collaboration between police forces. With it an alternative to hierarchical coordination and control has been introduced which has led to recent changes in the 1993 Police Act that provide a legal basis for interregional collaboration between police forces for the first time in Dutch history.