Judgment Field (ジャッジメント・フィールド Jajjimento Fīrudo) is an A-Class Secret Treasure.
An A-Class Secret Treasure, Judgment Field is a Magic Item that appears to be a small transparent cube that can be easily concealed in one's pockets. Inside the cube sits a dark orb that emits light when activated.
When activated, the Judgment Field creates a spherical barrier several meters wide wherein one cannot utter a lie. In addition, a person inside the barrier cannot answer questions to which they do not know the answer to as answering such questions would still count as lying.
- Fairy Tail Zero Manga: Chapter 2, Pages 16-17
- Fairy Tail Zero Manga: Chapter 3, Pages 8-9