 Why are the Soetti allowed to board the ship?
However, they lie deep in the sector into which the Soetti have been penetrating. "Now—" Magnan leaned forward and lowered his voice—"we have learned that the Soetti plan a bold step forward. "The Soetti War Plan—in detail. Overall policy calls for a defense of these backwater worlds. The Soetti are patrolling the trade lanes into Jorgensen's Worlds; don't get yourself interned." "You'll be traveling with Class X credentials," Magnan snapped. VIP's required accommodation," he said. "But—" Retief picked up his suitcase and walked away toward the glare sign reading To Gates 16-30 . "Which way to cabin fifty-seven, son?" Retief asked.
 The captain and Mr. Tony are in business with them.
 They need transport to Jorgenson’s Worlds as well.  They need to check the papers of each passenger, so the caption allows them to do so.  The Soetti aren’t - the captain fears them and they are illegally boarding.  The captain and Mr. Tony are in business with them.