C1247 The Halo Could Not Hold on Any Longer(1)

The staff expertly put on gloves, masks, and spats, and took a variety of instruments and reagents from their bags and placed them on the table.

First, she found the water cup that she had pointed out. Although she had poured the water and washed it, it was obvious that the murderer had not seriously washed it with detergent. Therefore, the big boss was able to find traces of it very quickly