In Biggles' Chinese Puzzle (short story), Bollard was an American pilot working for the American Aid Plan whose job was to ferry aircraft between Marseilles and Saigon.
Biggles met Bollard when he arrived in Saigon searching for Marcel Brissac who had disappeared while investigating a currency racket there. Bollard struck Biggles as a young and garrulous pilot who drank a little too much. By encouraging Bollard to talk and accepting his offers of drink, Biggles was able to elicit important background information about the Ching Loo organisation which had been on the list of companies which Marcel had been looking at. Among the things, Bollard told Biggles was that his job as a ferry pilot was routine but he was in control of his own schedules and that he enjoyed trouble-free access through customs facilities at airports because of a diplomatic pass which he had been issued with. Bollard rather indiscreetly added that that his job gave him the opportunity to earn a little money on the side.
Bollard also told Biggles that the hotel they were staying at, the Pagoda Palace, was owned by an influential Chinese businessman, Ching Loo, who also owned a lot of other real estate in Saigon. Bollard had heard that Ching Loo planned to start his own airline and he hoped to get employment with it. Although he had not met Ching Loo, P. Estere, the Swiss manager of the Pagoda Palace had promised to arrange a meeting.
Later, Biggles spotted Bollard coming out of Estere's office carrying a locked portfolio and began to connect Bollard with the currency smuggling racket.
Bollard left the following day, ferrying a Douglas DC-3 and arrived at Marseilles a few days later. Along the way, he had also dropped off at Rome an American deserter from the French Foreign Legion who he had picked up at Saigon Airport. By the time Bollard arrived at Marseilles, Biggles had rescued Marcel and had flown flat out to beat Bollard to his destination. Thus upon his arrival at Marseilles, Bollard was detained by Captain Joudrier. His portfolio was examined and found to contain contraband foreign currency. Bollard was made to deliver the portfolio to his contact in Marseilles, which led to the arrest of the Ching Loo operatives based there. This was the first step in the eventual dismantlement of the criminal organisation. Bollard himself got off with a fine because of his willingness to cooperate with the police.