The purpose of the justice system is to achieve justice not just for the victim but for the community as a whole. The justice system is there to help deter crime by punishing the perptrators of crime.
I can assure you that locking up Polanski isn't going to deter anyone other than Polanski himself.
This why there are rights that you even yourself can not dismiss, so people can not be bribed, swindled, or blackmailed out of them. Some rights are so important and precious they outweigh whatever the original victims desire. The woman whether she has absolved the perpertrator or not, was drugged and violated in a most dispicable manner when she was a 13 year old child. The horror of that crime means that it is something justice needs to pursue whether the original victim feels that way or not. It is justice that is being pursued and gone after here so that perhaps others may not suffer the same fate as she did. That is justice.
In many other cases, I would agree. In this case... not really.
Let me give another example that is somewhat similar. Everybody knows about the Chappaquidick incident. Ted Kennedy drove a car off of a bridge and negligently allowed a woman to drown. Back when it happened, he should've been brought to court and served some time for manslaughter and criminal negligence. Obviously, that didn't happen.
If, however, he was brought to court 30 years later on these charges, it would be mostly irrelevant. What's the point of convicting someone over something that happened that long ago -- something that was known in the public record and something he had been shamed about ever since? It's not like Ted was going to drown somebody else again.
It may not be fair that a guy like him escaped conviction because of his fame and power, but if you're going to prosecute, you're supposed to do it in a timely fashion. Waiting a few decades to prosecute ends the relevance of conviction.
The only time something like that makes sense is if it was unknown who the culprit was, and they had just discovered who did it.
For example, it made sense that the BTK killer was brought up on charges 30 years later because he escaped being identified by authorities for that long. He murdered several people and clearly would have continued to do so had he not turned himself in. The scariest part of all that was that the only reason he got caught was because he admitted to all of it.
With Polanski, a corrupt judge mishandled the case, and Polanski fled the country to escape this distortion of the justice system.
If anything, it shows how judges have too much power in our system. If a judge can legally get away with altering plea bargains as he/she sees fit, then it's no longer about justice. It's about power and corruption.
Unfortunately, that irreversibly taints Polanski's case. There's nothing the new prosecution can do to change that.
Mark my words... Polanski's defense is going to have a field day with the history behind this case, and in all likelihood, the resulting sentence is going to be much lighter than what much of the public seems to be lobbying for.
In effect, this isn't really just a rape case. It's a case that will be very influential in setting precedents for how judges are allowed to handle plea bargains.
Of course, there is always the chance that they will ignore the previous corruption by the original judge, but if they do that, then it's going to set some very negative precedents for our system overall -- a level of damage to justice much greater than letting Polanski go.