共犯同案被告人供述无论是关于自己的犯罪供述，还是关于同案被告人的犯罪供述均为被告人供述。而非证人证言；具有牵连关系的共同被告人如果仅就自己的犯罪事实进行陈述时，其性质是被告人供述；共犯在分离程序中基于共同犯罪事实的陈述，是被告人供述。同一程序中，只有共同被告人供述一致的，不能对被告人定罪处罚；分离程序中只有共犯供述也不能定案。 Confession of the same defendant confession Whether it is about his own crime confession, or about the criminal confession of the defendant in the same case are the defendant confession. Not a witness’s testimony. If the co-defendant with the implicated relationship only makes statements about his own criminal facts, the nature of the statement is the defendant’s confession. The statements made by the accomplices based on the facts of the common crime in the separation proceedings are the statements of the accused. In the same procedure, only the co-defendants confession can not be convicted and punished. Only the accomplice confession can not be finalized in the separation proceedings.