All laws
Linus's Law
Distributed Bug Detection.
If
"Given enough eyeballs, all bugs are shallow." A defect that looks impossible to one person often becomes trivial when many independent perspectives are applied to it — provided the code is actually visible to those perspectives.
Then
If the same class of bug keeps slipping through, the fix is not more careful review by the same people — it is exposing the code to more, differently-shaped eyes. Rotate reviewers, open up internal libraries, run bug bounties.
Unless
Open Source / Rotated Reviewers / Bug Bounties / Internal Code Discoverability