1178 I Can Be Your Little Wolfdog to Protect You

"It's a form. We needed to fill in the time we came to the lab, the names of the projects we worked on and the materials we'd be using." Jiang Yuning tilted his head to think. "I didn't see the registration book in this lab."

"Are you sure there's always a registration book in each lab?" Nian Xi was surprised. She had never seen one before and was sure none of her colleagues had taken a book like that from the lab.

The police checked the surveillance videos and queried the people from the lab to find out who had been there on the day of the murder.

Jiang Yuning nodded affirmatively and said, "Even I need to register my name when entering the labs in this school, not to mention the students. There was a registration book in the dorm we visited just now. This laboratory building is much more strictly managed than the dorm."