In the legal system, one of the big pieces of evidence brought before the court can be older decisions either by the same court, same level of court, or a higher court. Past rulings on similar crimes are usually taken as precedent for what courts should decide in the future. Of course, with thousands of cases to look through, lawyers can’t always come up with this information for the defense.
If you want to build the best defense possible either for yourself or a loved one, hiring a team to conduct case study research can be a good way to find valuable evidence that can be brought before the court. While case study data is not always relevant, it can sometimes be the deciding factor in a case. It is definitely an avenue that everyone should look into.