The students of the Linli special training class were promoted very quickly after graduation, and most of them were appointed to important positions, this is why Dai Li felt that the veterans of The Military Control Bureau is old, treacherous, and has no loyalty to him, so he has to change one situation to another. ,The chiefs and deputy chiefs of these secret police departments basically come from police academies. Although they have not studied or trained in secret police, the two professions have similarities and very good practical experience. , can make up for shortcomings. their own work.