In 2266, the facility was under the operational control of Dr. Tristan Adams. While initially praised for transforming the prison system in the Federation, it was discovered by the crew of the USS Enterprise that Adams were subjecting inmates and staff to the experimental neural neutralizer device, which would affect their brain-patterns. After the Enterprise put a stop to these illegal experiments, Adams' assistant, Dr. Simon Van Gelder, was placed in charge of the colony. (TOS episode: "Dagger of the Mind")