veracity

時の人が帰国しましたね。veracityはcredibility（「信憑性」）よりもさらに法的な領域に入った「真実性，正確さ」という意味です。Websterには，We questioned the veracity of his statements./The jury did not doubt the veracity of the witness.という例文があります。（GP）

Disgraced stem cell researcher returns to Japan

Hisashi Moriguchi, 48, the disgraced medical researcher who falsely claimed last week that he had used induced pluripotent stem cells (iPS) to transplant cardiac muscle cells in at least six heart disease patients, has returned to Japan. Moriguchi was met by a group of reporters at Narita airport on Monday afternoon and asked a series of questions pertaining to his research and his future in medicine.

Following the scandal, the University of Tokyo Hospital has announced that it is to investigate the veracity of research claims made by Moriguchi in the past, Fuji TV reported Tuesday. The Ministry of Culture, Science, Sports and Technology has also announced that it is to look into how Moriguchi used grants and subsidies provided by the ministry and the Cabinet Office.

http://www.japantoday.com/category/national/view/disgraced-stem-cell-researcher-returns-to-japan