Nick would need to expose the wesen world if he were going to do things truly by the book. Even Monroe and Rosalee don't think that's a good idea and the negatives would outweigh the positives. The show gives off the impression that things will be a lot worse than they already are if that were to happen.
I'll use the Naiads as an example. Is it fair or not for all wesen to go through the legal system? How would that situation be handled? The obvious solution would be for them to not commit any crimes but that's not realistic. Putting a Naiad in lockup is equal to torture. They may be criminals but would it be right for them to fear for their lives for any infraction? There would have to be concessions made for them but that would require exposing themselves. It's not a black and white issue here. I did cringe a bit in that episode for this very reason. They were being tortured and essentially being threatened with death in a short time span.
I'll use the Naiads as an example. Is it fair or not for all wesen to go through the legal system? How would that situation be handled? The obvious solution would be for them to not commit any crimes but that's not realistic. Putting a Naiad in lockup is equal to torture. They may be criminals but would it be right for them to fear for their lives for any infraction? There would have to be concessions made for them but that would require exposing themselves. It's not a black and white issue here. I did cringe a bit in that episode for this very reason. They were being tortured and essentially being threatened with death in a short time span.