Tandar Prime was the inhabited prime planet in its star system. This system was located in the Tandar sector. The planet was the homeworld of the Tandarans and the capital of their territory. As of 2152, the legal system was administered by the Central Magistrate's Office. The capital city of Tandar Prime was quite impressive. When Colonel Grat sent Enterprise to Tandar, he suggested that he would try to pull some strings for an ambassador to give them a private tour. (ENT: "Detained")