Statistics are important in medical malpractice cases because thorough statistical reasoning is vital in the courtroom. The case of Sally Clark shows a miscarriage of justice when she was convicted of murdering her two young sons based on faulty statistical evidence. The case motivated a decade of collaboration between statisticians, forensic scientists and lawyers. The goal of the collaboration was to educate people in legal systems internationally about the importance of data interpretation. This collaboration has led to new codes of conduct and improved guidelines on best practices for presenting forensic statistical evidence in court. These approaches are usually only applied to specific types of forensic evidence, but should be applied to all forms of evidence, including medical evidence. Statistics is the science of reasoning under uncertainty and provides a basic logical framework for collecting and interpreting relevant data.