Minto vs UPE
Wary of the hazards the Banshee System and its pulsar posed to the public, the government didn’t herald its discovery. They even passed a bill making it illegal for unauthorized ships to enter the system. Tensions came to a head in the early 26th century as Earth’s overcrowding reached cataclysmic levels. A legal argument erupted over whether the government had the right to ban people from a system. Many worried a future government could abuse this power to hide valuable land and/or minerals.
This led to the landmark Minto vs UPE court case that nullified the government’s permanent ban. The decision opened the Banshee System to all, and is also the reason the UEE cannot legally keep people from venturing into Vanduul space.