"At first it was called the Special Operations Section." Ma Jichun, the liaison officer sent by the Secret Service, was telling Zhao Yu the story of the search for the treasure. "Before the founding of the People's Republic of China, we had received information from the BIS and knew about the traitor Liu Dianchen. It is said that BIS paid close attention to Liu Dianchen's confession. After the war in Liaoning and Shenyang, they wanted to send him to the south for custody. Fortunately, we got the news ahead of time. We planned to snatch him, but BIS executed him secretly in order to avoid him being rescued."
"It is said that there was a terrible gunfight at that time, and the investigation record was incomplete," Ma Jichun continued. "The interrogation record found by group leader Zhao is the part we were missing."