This article is based on the assumption that norms can help better understand one of the expressivist aims of transitional justice, that of building a new narrative about the past. The main argument is that focus groups, as an interactive method of inquiry, are well suited to investigating how this “judicial” narrative interacts with the official and dominant war narrative in Croatia. Focus groups are more adept at this than other methodological approaches since they can effectively reflect independence of opinion; they lead to more truthful answers through spontaneity; they effectively probe taken-for-granted concepts; and they can more easily overcome distrust in post-conflict societies, especially with ex-combatants. The approach faces new challenges in such a situation since recruitment problems, insider/outsider status, and post-traumatic stress disorder, among other ethical concerns, present problems that often arise due to the group process. The powerful and unpredictable effect of the group dynamic can, therefore, provide a deep exploration of social norms, but it can also cause significant upset among participants. In this instance the methodology explores how widely accepted the war narrative is, how it is constructed, and how important the public believes it is not to question it.