|This article is about the current version of DF.|
Bandits and Criminal Organisations have a Boss. They may also be called a ringleader, master, warlord, chieftain, etc. Criminal bosses can often be located in a dungeon, while bandit leaders can be found in camps. When you encounter them, they will be flashing like other leaders in the game.
Both are effectively treated as lords of their respective place of residence, meaning talking to a boss (if they haven't been provoked yet) will allow you to join them as a lieutenant, lay claim to their territory, etc.
Criminal leaders and their subordinates can occasionally be weaponmasters, and are often the only ones that are generated during worldgen. Certain criminal bosses in capital cities will also come equipped with a random assortment of masterwork quality items.