How did hitler and the nazis justify the holocaust in other words why did they kill jews and other unwanted group

new evidence is discovered.

oversights and errors are corrected,

new technology is applied to evidence.

`stare decisis is a legal doctrine that obligates courts to follow historical cases when making a ruling on a similar current or future case. stare decisis ensures that cases with identical facts be approached in the same way, unless overruled by the same court or a higher court such as the us supreme court. simply put, it binds courts to follow legal precedents set by previous decisions.

stare decisis is a latin term meaning "to stand by that which is decided".