The NBIS had a great influence amongst the Nationalist Government's military, police, administration, and transportation agencies, as well as embassies and consulates abroad during the Political Tutelage period (1928–1946) of the Republic of China.

Dai sought to make the Juntong into an extended family with himself as the stern paternal figure, stressing traditional Chinese Confucian values of filial piety, loyalty, benevolence, and righteousness.

[2] The inspiration for the Juntong were the secret sworn brotherhoods portrayed in the classics of Chinese literature like Water Margin and The Romance of the Three Kingdoms.

[3] Dai presented himself as a stern Confucian father figure to the men and women of the Juntong and liked to quote from book The Dynastic History of the Han: "Is personal happiness possible before the extermination of the Xiongnu?

[2] The rules about celibacy were not always followed as Liu Gequing, the Juntong ace assassin fell in love with and had a relationship with a fellow agent, Lu Ti, during his time in Shanghai.

[4] Likewise, Juntong agents were expected to forsake smoking, gambling and playing mahjong as Dai wanted them to work hard and dedicate their lives totally to China.

[6] A disproportionate number of the men and women of the Juntong came from the provinces of Hunan, Guangdong, and Zhejiang, all places where Western influence was limited and traditional values flourished.

[6] In 1938, the Special Works Department was expanded and took over the "Investigation and Statistics Bureau" to cope with the increasingly demanding tasks of intelligence operations.

[9] On Chinese New Year (18 February 1939), four Juntong agents assassinated Chen Lu, the foreign minister of the Wang Jingwei puppet government as he paid respects to his ancestors in his mansion in the French Concession of Shanghai.

[11] Fu Xiaoan, the banker and shipping tycoon who had long been an enemy of the Kuomintang and had thrown in his lot with the Japanese, becoming the collaborating mayor of Shanghai, was hacked to death with a meat chopper in his bed by his cook who was secretly a Juntong assassin.

[8] In 1939, a banquet to celebrate the friendship between Japan and the Wang Jingwei regime attended by senior Japanese officers and Chinese collaborators in Shanghai were ruined when the cooks, many of whom were working for the Juntong poisoned the food, and only prompt medical attention that required pumping the stomachs of the guests prevented hundreds of deaths.

This was based in the Huxi "badlands" district in Shanghai headed by Ding Mocun and Li Shiqun, two former Communists who defected first to the Juntong and then to the Japanese.

76 organization, as it was known after its address at 76 Jessfield Road, was founded in February 1939 when Ding and Li presented themselves to General Kenji Doihara, the chief of Japanese intelligence in China, at a restaurant in Shanghai's "Little Tokyo" district and proclaimed their willingness to serve Japan, stating as former Juntong agents that they were the only men who could beat the Juntong at its own game.

76 Jessfield Road in July 1939, was based in a mansion that had once belonged to the warlord General Chen Diaoyuan that was turned into a fortress with concrete blocks on the driveway and electrified iron gates as both Ding and Li had an obsessive fear of assassination.

[13] The collaborating secret police assassinated anti-Japanese Chinese; had powers to arrest without warrant, torture and to kill extrajudicially; kidnapped businessmen for ransom; and were deeply involved in organized crime, charging a "fee" to all of the opium dens, brothels and casinos of Shanghai to allow them to operate.

[4] On 21 December 1939, Ding was almost killed when his mistress Zheng Pingru, a girl born to a Chinese father and a Japanese mother, led him into a Juntong assassination attempt.

After Nationalist government was moved to Taiwan in 1949, a number of BIS staff remained in mainland China for intelligence activities.

The NBIS operatives were severely repressed by Chinese Communist government during the Campaign to Suppress Counterrevolutionaries, and were mostly executed by firing squad or received heavy punishment.

The Military Intelligence Bureau was subordinated to the Ministry of National Defense under the direct command of the Chief of the General Staff.