What are the two most key benefits of performing code review

What are the two most key benefits of performing code reviews even after successful extensive testing?

Solution

The benifits of performing code reviews even after successful tesing:

Some of them make testing of the code with some sort of testing tools and here the problem is the testing tools might not be good enough and not so much effective and efficient so that it can skip some type of errors and bugs that are there so by revieing again it will be very much benificial to the eisting code.

During the testing process there will be many times that code move from devoleper to the testing team and many discussions with many bugs that are encountered and rectified code comes to the tester and again they find another so in this process there may be a chance of ignoring some bugs which will definitely make a bad sense so even after completion it is needed to review properly.