Of course, it's difficult to investigate, given that over a year and three months have passed.
The bar doesn't require real-name registration, making it a challenge to investigate.
However, no matter how difficult it is, this clue, being the only one we have, must be pursued.
Zhang Hui has been doing this for many years, he's an expert in this area with rich experience.
"Here's how we'll proceed: checking last year's bar attendees should start from two aspects."
"First, we need to review the surveillance footage. The bar's surveillance footage might not have last year's data now, but at that time when Wang Lili disappeared, the local public security bureau had investigated the footage, so there should still be a backup, right?"
Zhang Lijun nodded affirmatively: "There is a backup. I was the one who checked the surveillance footage; the video backup is right in the archives computer of the Criminal Investigation Team."
