It was precisely because of the different nature that Saito Hiroshi had hurriedly called Tang Ze to inform him of the seriousness of the matter.

"That's the situation." After Tang Ze finished reviewing the information and video, Officer Megure said, "We can't confirm whether the other party has any problems.

But the polygraph did show that he did not know the details of the murder..."

"The case has reached a stalemate." Takagi beside him also sighed: "Our investigation has found absolutely no evidence against him, and his alibi is also perfect."

"Just because you don't know how the murder happened doesn't mean there's no problem."

Tang Ze said in a deep voice, "Generally speaking, even if someone has nothing to do with the case, they will be a little nervous or even suspicious when undergoing this kind of inspection for the first time.

But he was too calm. I noticed in the video that he hinted at you using a lie detector test on him."

"What!?" Gao Mu was shocked when he heard this: "Are you saying that we have all fallen into a trap?"

"Generally speaking, human nature is to seek benefits and avoid harm. Now that you've proven your innocence, there's no need to provoke the criminals, right?"

Tang Ze said, "People tend to avoid criminals working in the office for fear of getting into trouble, but they mocked you before leaving. This is obviously not in line with the mentality of an ordinary suspect.

There aren't many fools who can become associate professors. Weighing the pros and cons is something every adult does.

In other words, he must have done this for a purpose.”

"We should rely more on the power of science to get to the bottom of this matter."

It was these words that were full of provocation and hidden hints that made Takagi think of using a lie detector.

Tang Ze even suspected that the other party knew about the Metropolitan Police Department's recent decision to introduce a "lie detector" and then formulated a "trick" based on this decision.

After all, if the other party does not induce the "lie detector" test, the police will definitely continue to investigate the other party.

But now, polygraphs have also been taken.

If you can't produce concrete evidence or a breakthrough, you won't even have an excuse to ask the other party to cooperate with your "informal search."

Once someone says "I've even taken a lie detector test," you're completely blocked and there's no room for maneuver.