2006 Ivory Coast toxic waste dump then released and charges were dropped against them. Further prosecutions against Ivorian citizens not employed by Trafigura continued. On 6 December 2006, an independent inquiry launched by the City of Amsterdam concluded that the city was negligent when they allowed Trafigura to take waste back on board the "Probo Koala" in Amsterdam in July. Part of the "Probo" cargo was offloaded with the intent to have it processed with an Amsterdam waste processing company but when this turned out too expensive Trafigura took it back. The responsible local civil servants were reportedly unaware of existing Dutch environmental laws that would
2006 Ivory Coast toxic waste dump July 2006, the "Probo Koala" called at Amsterdam port in the Netherlands to discharge the slops contained in the vessel's dedicated slops tanks. During the transfer such a foul smell was released onto the city that the disposal company Amsterdam Port Services B.V. (APS) decided to consult with the city of Amsterdam. After half the waste was transferred APS increased the handling fee 30-fold. APS then informed the ship's master that authorities had given permission for the slops previously removed to be returned to the vessel. The Probo Koala departed Amsterdam on 5 July 2006 for Paldiski, Estonia, with the