This adds a short quest that creates the pretense for making the player a target for assassination. Since the quest is a condition for the Dark Brotherhood attacks it effectively delays the start of the Tribunal main quest until the player decides it is appropriate. The quest is not available until the player has attained at least level six. Additionally, the weaker assassins have been re-equipped with appropriately less-valuable armor. This mod depends on Morrowind.esm and Tribunal.esm
For more details about what this mod provides refer to the readme file: TriggerDBAttack_Readme.txt.
Screenshots (click to enlarge):