Driven by the fear of collusion in the new divorce court, in 1860 Parliament authorized the Queen's Proctor to intervene in divorce suits by rooting out information that the parties left undisclosed. This paper explores the activities of the Queen's Proctor in its first quarter century, revealing both the curious genealogy of community participation in the Queen's Proctor's efforts and the struggle over the definition of collusion. Over time, economic and evidentiary concerns prompted the Queen's Proctor to turn from uncovering collusion to producing evidence of adultery. The Queen's Proctor represents a striking attempt by courts to assess the validity of party-controlled narratives, resulting in surprising practical consequences. Evaluation of narratives quickly devolved into a bright-line test focusing on adultery, with judges following the Queen's Proctor's lead and eschewing discretion.