I get that they might have to let him go due to the 4th amendment violation, but I also think that he should be given probation or rehab or something. Just because the criminal portion has ended doesn't mean the public health/safety angle needs to be ignored.
Without his consent.
> but I also think that he should be given probation or rehab or something.
“Given” how? Except with due process—including findings based on legally obtained evidence—the government can't “give” him any mandate depriving him of liberty.
The “Fruit of the Poisonous Tree” doctrine [0] would disagree with you.
[0] https://en.m.wikipedia.org/wiki/Fruit_of_the_poisonous_tree
If evidence is false or tampered with then by all means ignore it, but if it's solid it doesn't matter if it came out just because someone committed some additional crime.