After hanging up Mr. Qu's call, Zhou Ning sighed with relief.
In Yi Xiaou's home, the computer and several mobile phones that had been found were decrypted. Traces of eavesdropping software were discovered on the phones, and although they had been deleted, the contents were fully recovered.
There were quite a few people being monitored, including the phones of Dong Chengwen, Fang Hua, and Luo Qian, with the monitoring spanning sixteen months. Hence, many monitoring files had been deleted.
As for the surveillance on the computer, it seemed a professional had been hired to cancel all the automatic sync dates for the surveillance. Instead, they were set to manual date settings, with the default date set one day behind the actual date.
In other words, the surveillance showed dates from the previous day. In the real surveillance footage from June 29th, Yi Xiaou had not returned home, and only images of a cat were captured.