The verb scrutinize means to examine something very carefully, often to find some information from it or about it.
Synonyms are analyze, check, inspect, or investigate.
The word origins from 1670s. It comes from scrutiny plus –ize. In the past, its verb form was scrutine (1590s) from French.
We have to scrutinize every claim of miraculous healing.
I noticed the whole team had left their desks to scrutinize the proceedings on the fifth floor.
He scrutinized the person who just walked into the shop.