But whilst the Centurion and her prize were thus at anchor, a boat with an officer came off from the mandarin commanding the forts at Bocca Tigris to examine what the ships were and whence they came. Mr. Anson informed the officer that his ship was a ship of war, belonging to the King of Great Britain, and that the other in company with him was a prize he had taken; that he was going into Canton River to shelter himself against the hurricanes which were then coming on; and that as soon as the monsoon shifted he should proceed for England. The officer then desired an account of what men, guns, and ammunition were on board, a list of all which, he said, was to be sent to the Government of Canton. But when these articles were repeated to him, particularly when he was told that there were in the Centurion four hundred fire locks and between three hundred and four hundred barrels of powder, he shrugged up his shoulders and seemed to be terrified with the bare recital, saying that no ships ever came into Canton River armed in that manner; adding that he durst not set down the whole of this force, lest it should too much alarm the Regency. After he had finished his enquiries, and was preparing to depart, he desired to leave the two custom-house officers behind him, on which the Commodore told him that though as a man-of-war he was prohibited from trading, and had nothing to do with customs or duties of any kind, yet for the satisfaction of the Chinese he would permit two of their people to be left on board, who might themselves be witnesses how punctually he should comply with his instructions. The officer seemed amazed when Mr. Anson mentioned being exempted from all duties, and told him that the Emperor's duty must be paid by all ships that came into his ports.