The Special Branch's archive was acquired by the Central Intelligence Agency in 1949 and was eventually opened to researchers in the 1980s, although the files had clearly been weeded to remove material that might compromise some figures with a Shanghai past.
1949年，政治部存档由中央情报局收购，最终在1980年代向研究者开放，不过这些档案显然消除了可能危及过去在上海的一些人物的有关材料。