Dylhuc Detention Center was a prison in the Vackrinos District, an administrative region on the planet Acamar III.
In 2313, Gatherer leader Penthor-Mul was transferred from Bruno Prison to this prison. A week later, his trial began with opening arguments by Dongren.
In 2366, this prison was mentioned in the court records of Penthor-Mul, which were accessible to the crew of the USS Enterprise-D via the Acamarian planetary database. (TNG: "The Vengeance Factor", okudagram)
This prison was only mentioned in writing.