Commodore Baltzell is an old loyal officer of the New Order. He fought during the clone wars when he was only a young officer.
The Navy is his life and he do not want to retire; but he prefers easier missions nowaday. That's why he got in charge of the first Assimilator-Class Interdictor Star Destroyer: the Destiny. The Emperor himself presided the ceremony.
If the PCs are making too much noize about the investigation, Baltzell will begin to not like that and will try to shut the operation down; claiming that his cruiser was safe for years and will continue to be so under his exemplary command!