Every year, thousands of patients undergo bone marrow transplants. Patients suffering from leukemia, sickle cell anemia, or lymphoma are frequently advised to undergo surgery. So, how did this difficulty not arise earlier? Here’s the thing: it does.

Bone marrow transplants have already disrupted criminal investigations. Renee’s study was the first comprehensive scientific investigation into DNA alterations. The team presented Chris’s case at the international forensic science conference in September 2019.