A carbon copy that cannot be checked with the original, if it is a separate evidence, cannot be used as the basis for determining the facts of the case.

2. The carbon copy is made of medium carbon paper, which is completed synchronously with the original, and it is not easy to be forged, so it should belong to the original evidence;

According to the Supreme People's Court's Opinions on Several Issues Concerning the Application of the Civil Procedure Law of People's Republic of China (PRC), the evidence material is a copy, and the provider refuses to provide the original or the clues of the original, and there is no other material to prove that the other party refuses to admit it, which shall not be used as the basis for ascertaining the facts in the lawsuit. "

Article 69 of the Evidence Regulations stipulates that a copy that cannot be checked with the original, if it is a separate evidence, cannot be used as the basis for determining the facts of the case.

3. According to these two provisions, it can be inferred that copies of evidence that have not been checked by the court will not be recognized under the following circumstances:

1) is not confirmed by other evidential materials (i.e. single evidence);

2) The other party denies it.

The word "you" means that these two conditions must be met at the same time. On the other hand, if the copy of evidence is supported by other materials or recognized by the other party, the probative force of the copy can be confirmed.