"Hello, Mr. Wang!"
"Hello, Mr. Wang!"
"This is the erudite Mr. Wang. Just by looking at his glasses, you can tell he has profound knowledge."
"Hello, officers!"
Mr. Wang smiled and said, "Mr. Li, you're flattering me as soon as we meet. It's making me a bit anxious."
As he spoke, his gaze fixed on the evidence bag in Wan's hand.
"Mr. Wang, you don't need to worry. This is certainly within your area of expertise, and it's also your specialty."
Li Jian introduced, "We have a case where a steel rod was found at the scene with a greasy substance attached to one end. We'd like you to identify what type of grease it is."
After hearing this, Mr. Wang nodded and said, "Haha, this is indeed my specialty!"
"Let's go! We'll chat while working in the lab."
Immediately, the three of them followed Mr. Wang into the laboratory building.
With the assistance of his aide, Mr. Wang quickly wiped, extracted, and transferred the greasy substance from the steel rod.
