corroboration

US /kəˌrɑː.bəˈreɪ.ʃən/
UK /kəˌrɑː.bəˈreɪ.ʃən/
1.

sự chứng thực

the act of proving an account, statement, idea, etc. with new information:

:
Without corroboration from forensic tests, it will be difficult to prove that the suspect is guilty.