Victor Grieves held the position of Specialist within the Investigations division of the Imperial Security Bureau. At 27 years old, he transitioned directly into the ISB from COMPNOR, receiving his Investigations assignment just a few weeks prior to the second Death Star's destruction. Post-destruction, he functioned as both a spy and assassin alongside Imperial governors scattered across the Outer Rim Territories, frequently delivering advance intelligence about impending New Republic assaults, often weeks in advance of their scheduled execution.
Despite missing the Empire's peak, when resources and backup were plentiful, Grieves thrived on the risks associated with independent operations. He occasionally contemplated abandoning his Imperial allegiance to pursue a career as a freelance spy or perhaps even a bounty hunter. The last known sighting of Grieves placed him within the Rintonne system, where it was believed he was collaborating with Imperial Governor Serdif Tount.