This short paper provides a rough and very tentative outline of a research study aiming at tracing the interplay between different kinds of knowledge production about cultural policy, on the one hand, and cultural policy practice, on the other, in the specific setting of the Swedish political-administrative system. Over time, knowledge production about cultural policy has become increasingly diversified, most notably through the establishment of a specific national government agency devoted only to the assessment of policy measures in relation to policy goals. In addition to academic researchers, a new kind of expert has thus been introduced in the negotiation over which knowledge claims that gain legitimacy amongst cultural policy stakeholders. The paper briefly discusses this development based on a selection of previous research on knowledge production in and about cultural policy, as well as suggestions on how to methodologically explore this turn of events.