Since Alec Jeffreys di scovered the genetic fingerprint, DNA has become an indispensable tool for crime investigators. His power for identification is based on the certainty that the DNA of each person comes undoubtedly from their parents, being un ique. But nature can generate d isturbances that seem to contradict those precepts, leading to mislead the forensic experts. Chimerism cases are a good example. Also transfusions, organ transplants and the techniques used in assisted human reproduction, are able to generate genetic resul ts difficult to interpret by forensics. The present work is devoted to review how these procedures have become involuntarily, a possible source of error for crime investigators.... [Leer más...]