Coincidentally, the troops captured a Japanese prisoner, and it was the reconnaissance team staff officer Yin Chun's responsibility to interrogate him. He revealed that it was possible to use elephants to act as the pillars of a temporary bridge. After reporting to his superiors, Yin Chun led a five-man squad, crossing the river in search of elephants.
恰巧部隊抓到一個日本俘虜，由當時情報組參謀尹駿負責審訊，問出可以利用幾隻大象搭成「橋墩」過，呈報上級被接納後，尹駿便帶頭率領五人小組渡江去抓大象。