Leila Schneps received her B.A. at Harvard University in 1983, and then moved to France to pursue her Ph.D. in mathematics at the University of Paris, where she later became a researcher at the French Center for Scientific Research. Although her main area is pure mathematics, she became interested some years ago in the way in which mathematics is used in criminal trials and medical diagnostics, two areas in which a close examination raised major concerns about serious errors being made due to misunderstandings and misuses of probabilities. Together with Coralie Colmez, she published a book called Math on Trial (Basic Books, 2013) detailing 12 cases of mathematical errors leading to miscarriages of justice from the end of the 19th century to today. Since then, she has become involved in working with the French police on efforts to bring Bayesian networks and artificial intelligence into the crime investigation community, and also in publicizing the problems with the current medical practice of rigidly diagnosing shaken baby syndrome in the presence of certain symptoms based on a faulty understanding of the results of certain statistical studies, leading to the arrest of parents and the breaking up of families.