what can be used to crawl through defendant's records to exonerate them can also be used for other purposes so care will always need to be taken with expanding processes such as this.
that out of the way, long term it would be best to standardize how this information is stored, categorized, and shared, so that exoneration in one locality can be more easily implemented in another.
This technology has long been used to dig through the past of anyone and everyone that comes in contact with the legal system. When you get pulled over for a taillight out and the cop runs your driver's license your pot charge from the 80s comes up.
that out of the way, long term it would be best to standardize how this information is stored, categorized, and shared, so that exoneration in one locality can be more easily implemented in another.