Judge's Signals
Hand and flag signals used by center and corner judges.
Who controls the call
The center judge starts and ends every match and has complete control of the ring, moving anywhere in the contest area without becoming an obstacle to competitors. On seeing a point or penalty, the center judge calls Jung Ji, polls the other judges for a vote, and administers the resulting action.
Corner judges stay within their corner boundaries but can move around within that area to get a better look. If a corner judge sees a point or penalty, they shout "Call" — the center judge then stops the match by shouting Jung Ji, polls the judges, and administers the action. Only the center judge can use the command Jung Ji.
Hand signals


When the center judge polls for a penalty, a judge can only respond with one of two signals: a penalty against one of the individuals, or a no-point signal, meaning no penalty. During a warning call specifically, a judge who initially signaled "no see" keeps that vote — it stays out of the decision for that stoppage.
Flag signals

Corner judges may optionally use colored flags for dae ryun competition during a Championship — the center judge always uses standard hand signals, never flags. When flags are in use, judges hold them so the red flag points to the red competitor and the blue flag points to the blue competitor. Red or blue ribbons in each competitor's belt make it easy to tell them apart.