The Aum group traveled with chemicals and mining equipment on which they paid over $20,000 in excess baggage fees. According to the Australian Federal Police report, among the baggage was a mechanical ditch digger, picks, petrol generators, gas masks, respirators, and shovels. A customs duty of over $15,000 was paid to import these items. Because of the large amount of excess baggage being brought in by the group, Australian Customs searched the entire group. This search revealed four liters of concentrated hydrochloric acid, including some in containers marked as hand soap. Among the other chemicals that Australian customs officials found were ammonium chloride, sodium sulphate, perchloric acid, and ammonium water. All of the chemicals and some of the laboratory equipment were seized by Australian authorities.