I know, I'll combine movie opening dialogue - the only thing better than one favorite movie are several!
The beginning is a very delicate time. Much that once was is lost for there are few that remember it...
[Cate Blanchett summarizes the Butlerian Jihad]
... Oh yes, I forgot to mention. Special police squads - BLADE RUNNER UNITS - had orders to shoot to kill, upon detection, any trespassing Replicant.
This was not called execution.
It was called retirement.
Wait WAIT why are you leaving?