WoW - Badges of Justice @ Official Site
Blizzard has updated the official World of Warcraft site with information on Badges of Justice .
Badges of Justice are obtained from bosses in Heroic mode dungeons. Every member of a five-man group can loot their own Badge from each boss defeated in Heroic mode. The Badges are bind-on-pickup and thus cannot be traded or sold. Access to Heroic difficulty requires Revered reputation level (for each group member) with the dungeon's associated faction. Badges of Justice can be turned in for these powerful rewards from G'eras, found in Shattrath's Terrace of Light.