The Beiqian police impressed Zhao Yu. Right after Zhao Yu gave them the order, they immediately summoned their people from their other branch offices, gathering hundreds to come and help with the efforts.
Zhao Yu divided them into ten groups, nine of which were responsible for one-on-one investigation of the victims from the Devil Case. Zhao Yu demanded that they all do their best.
He needed a thorough investigation of the victims' situations before their deaths. The nine groups were instructed not to miss any details and to collect all of the information that was accessible.
The remaining group was mainly responsible for investigating what Han Kuan did that year, while making a detailed and careful report of Han Kuan's activities when he was in Beiqian. After Zhao Yu's had given everyone tasks, Deputy Bureau Chief Xu emphasized how important self-discipline would be during these tasked.