Information and expertise in public policy.

The text discusses the relationship between science and policy, focusing on research on policy advisory systems and the roles of scientists in policy processes. It highlights the importance of systematic reviews in this complex research area and presents findings from studies on policy advisory systems, scientific advisory committees, expert roles in crisis management, and information acquisition in science and technology policy. The text also explores the influence of expert opinions on citizens' policy attitudes in China, emphasizing the significance of expertise in shaping public opinion on contentious issues. [Extracted from the article]