The Mission to Nar Shaddaa presented Quinlan Vos with a chance to seem like he had abandoned the Jedi Order, a crucial step given his covert intelligence work for the Jedi Council. This facade was essential for Vos to penetrate further into the Separatist's most secure echelons.
After reports surfaced connecting Vos to the events on Brentaal IV, suspicion arose among the Jedi, with some believing he had genuinely turned traitor. Despite this, the Jedi Council maintained their trust in him and sanctioned his apparent "defection" from the Order. Unaware of the ruse, Agen Kolar was dispatched to pursue Vos on Nar Shaddaa.
Upon reaching the Smugglers' Moon, Kolar confronted Vos, leading to a duel between them. Driven by the conviction that he was punishing a traitor, Kolar almost succeeded in killing Vos, but Vos managed to escape, precisely as the Council had orchestrated. This outcome allowed the Jedi Council to position their operative at a deeper level within the enemy's organization.