 Zhou's main concern in running "Teke" was to establish an effective anti-espionage network within the KMT secret police.Within a short amount of time the head of "Teke"'s intelligence section, Chen Geng, succeeded in planting a large network of moles inside the Investigation Section of the Central Operations Department in Nanjing, which was the center of KMT intelligence.The three most successful agents used by Zhou to infiltrate the KMT secret police were Qian Zhuangfei, Li Kenong, and Hu Di, whom Zhou referred to as "the three most distinguished intelligence workers of the Party" in the 1930s.