2005 Volume 4 Issue 1 Pages 92-106
In this paper, we attempted quantitative analyses to discriminate against different testimonies which a witness had spoken in court. The numeral indices for analyses are the average counts of characters per answer in each topic, the frequencies of the answer containing novel information, changing a topic, some features in content (for example, the testimony was dependent upon another sources), some individualities of his own expressions, and silence. In each topic, the average counts of characters per answer are different. That is, self-involved topics have more counts of characters than topics about the crime story despite pleading not guilty. He was often stuck for a reply without novel information in the period of pleading guilty, though he explained positively with novel information and changed into another topics in the period of pleading not guilty. These phenomena suggest that the witness didn't take part in the crime. So our attempt have demonstrated the witness's attitude.
