The Senatorius were an ancient race that lived in the galaxy.
Thousands of years ago the Senatorius were known to have ruled the galaxy and through the use of the Integrated field derandomizer, they were able to create unspeakable acts of cruelty through their primary weapon. They had also constructed the TAVAD which was a component of the IFD.
A trial by the Senatorius was activated in the 2360's during the search for the power of the IFD between the Chodak, Federation and Romulan Star Empire. Ultimately, Captain Jean-Luc Picard of the USS Enterprise completed the trial and sent the Chodak and Romulan commanders to their respective homeworlds whilst he sent the IFD 10,000 years into the future in the hopes that they had become a more responsible civilization for its use. (TNG video game: Future's Past)