"criminalise unauthorised research into re-identification"
Does that mean there is authorised research? That would imply that some will have authorisation to re-identify what is very personal information.
Here's a better idea, before you release it pass it through trusted university researchers so they can show you it can't be truly anonymous then don't release it.
Makes you wonder about all that data google already has over here. I'm sure they haven't attempted to re-identify it...