Each player is assigned their own Evidence Locker upon entering the Containment Zone. The locker is sealed with wax Bureau stamps that can only be broken by the player themselves or authorized Bureau auditors. As players compete across multiple leagues, their locker physically expands to accommodate new evidence. The locker contains both physical scorecards and digitized records, bridging the retro and modern aesthetics of the Bureau. Contents are organized by recency, with recent rounds more accessible than historical performances.

The Evidence Locker determines what evidence is visible to other players and the Bureau. During disputes or appeals, the locker contents become critical evidence. Players with high clearance can peer into opponents' lockers, building strategies based on historical performance, while mysterious players with low clearance keep their true capabilities hidden - until an audit reveals all.