Grasp the contradiction and expose it

In the process of debate, the other party's speech is often inconsistent. At this time, if we can grasp the contradiction to expose, we can often make the other side speechless, and it is difficult to argue. This method is to reveal the law of contradiction.

Look at a case. A female robber snatched 165 yuan from her main purse, but she denied the fact and tried to deny it. The following is a transcript of the investigator's interrogation of a criminal by using the law of contradiction

How much did you take out of her purse?

A: I was a little nervous at that time. I only saw 65 yuan.

Q: is the purse zipped up?

A: Yes.

Q: how does the purse open?

A: I opened it when I wrestled with her (the victim).

Q: how is the money put?

A: it's wrapped in large bills and folded together with small bills.

Q: in that case, should you see the large denomination bill first?

A: of course.

Q: what about the 100 yuan bill that she (the victim) packed outside?

A: I didn't see it clearly.

Q: when you see the 65 yuan note inside, why don't you see the 100 yuan note wrapped in the outer layer?

A: I

It can be seen from this record that the robber made a mistake of "ambiguity" in her confession. She not only admitted that she had seen the face note in her purse clearly, "she was a little nervous at that time, as if she had only seen 65 yuan", "it was wrapped with large face note and folded with small face note", but later denied that she had seen the large face note in her purse clearly and said "I didn't see it clearly". During the interrogation, although the criminal tried to cover up the amount of money he had robbed, the inspector seized the contradiction tactfully, revealed it in time, and questioned it severely. Finally, the criminal could not conceal his crime and admitted his criminal facts.