Mr. Zhao's words made a lot of sense, and Zhou Ning very much agreed with this judgment.
"Hmm, both are possible. The key is to compare them with the surveillance video."
Mr. Zhao kept working with his magnifying glass, carefully examining both inside and outside the window. Suddenly, he spotted a protruding nail cap below the window with a white object hanging from it, fluttering in the wind. He paused his actions and picked up the object with tweezers, observing it for a while.
"It's not fabric, nor is it paper. It looks somewhat tough, and there are some words and vertical stripes on it... Wait, I know what this is. It's the sticker on the telescopic handle of checked-in baggage that's used for baggage check-in and registration."
Zhou Ning patted him on the shoulder, looking at Mr. Zhao.
