查因安抚式治理 / Root-Cause Pacification
Root-cause pacification is the governing pattern Hanji 927 draws from 贾从’s appointment to 交趾郡. The key move is to ask why people rebelled before deciding how much force, punishment, relief, and personnel replacement to use.
Jia Cong’s sequence is diagnostic and administrative: investigate blocked complaints and extraction, issue reassurance, recall refugees and hungry people, exempt corvee labor, kill major violent leaders, and appoint clean capable acting county heads. The source contrasts this with previous inspectors who treated Jiaozhi as a wealth-taking post and thereby created the rebellion they later wanted to escape.
The concept is narrower than 占领区怀柔治理 because Jiaozhi is not a newly conquered enemy territory in the source. It is also broader than 益州宽惠安抚, which names Liu Yan’s specific Yizhou settlement. Root-cause pacification names the general local-governance technique: repair the condition that made disorder socially rational, while still using targeted coercion against the violent leadership layer.