Doesn't parallel construcction mean that judges actually don't care how evidence was collected? They can't possibly care that much if they are fine with a fig leaf like parallel construction.
No.
Parallel construction means they have an illegal bugging device in the courthouse bathroom, and use a conversation that you have with your attorney to identify a witness. Then they independently arrest the witness for something and pressure them to testify.
Basically... yeah.
It's using illegally obtained evidence (like an NSA wiretap) to point the detectives in the right direction they would have otherwise never probabilistic-ly searched.