Baz was a male human who served the Galactic Empire's Imperial Navy as an ensign during the early years of its reign. He was assigned to serve on Sentinel Base, a construction project under the command of Moff Wilhuff Tarkin on a moon in the Outer Rim Territories. While there he used spice, a drug which affected his performance. While traveling on board the Carrion Spike, Tarkin's personal ship, during a journey it made in 14 BBY to the planet Coruscant from Sentinel Base, Tarkin noticed signs indicating Baz's spice use and had him confined to his quarters.