Intersol where a group of beings deticated to lock up dangerous aliens. They went after Majenta Pryce an old enemy of theirs. The went and looked for her all over the galaxy. Including Thinktwice prison and Stormlight House. They finally found Majenta with her friend The Doctor on the Planet Earth. (DWM: Ghosts of the Northern Line)
They managed to chase the Doctor and Majenta from not being able to time travel in the Tardis. They then captured the doctor, but Majenta got away. Majenta was later found by Zed an employee for them, who then went on to fire at her. (DWM: The Crimson Hand)