Snagel was sent a code-message by Ranulf Trommer, who was investigating the suspicious activities Governor Grigor on the planet M'haeli some months after the Battle of Yavin. The message contained enough information to "put Grigor in chains".
Ranulf's reaction to the invasion force implies that he regarded Snagel as having some sort of relationship with the Imperial High Command, as he commented to Mora: "I sent a coded message to the High Command, describing Grigor's illegal mining operation. This armed force is their answer!".
- River of Chaos 3 (Mentioned only)