Beginning in 2021, many mayors and legislators have had their Ph.D. or master degrees revoked. The most likely factor is that their degree dissertations were written by their assistants or arranged by the assistants. This study discloses a specific case, proving that two academic dissertations show common numerical figures in multiple blocks. The tow dissertations are author by an official in the government and his assistant. The official earned his Ph.D. from the National Taipei University in 2011 and his assistant earned her Master degree from Yuan Ze University in 2008. Therefore, it is highly suspicious that that the official's Ph.D. dissertation was written by his assistant.