In his daytime job as part of the University of Missouri College of Agriculture, Food and Natural Resources Animal Sciences faculty, Peter Sutovsky studies mammalian spermatogenesis, fertilization and pre-implantation embryonic development. In his off-hours, he helps detectives solve criminal cases. The associate professor is a member of a joint venture between the University of Missouri and the Paternity Testing Corp. (PTC) that seeks to revolutionize forensic work relating to rape cases.