What do citizen perceptions of trust tell us about constitutional authority?

Authority is a core element of effective constitutional government. But where does authority come from and how is is it maintained? This paper considers whether there may be a recursive relationship between the authority of constitutional systems and how they operate and are experienced by citizens within the system. Using examples from particular systems, the paper will explore citizen perceptions of trust, legitimacy and authority and consider what these perceptions may indicate about the foundations of public law.