Provide for criminal proceedings against juveniles charged with felonies following unsuccessful juvenile court proceedings and provide for inadmissibility of certain statements

LB 407 modifies Nebraska juvenile justice procedures by allowing criminal prosecution for juveniles aged 13-15 charged with serious felonies (Class I-IIA) after failed rehabilitation in juvenile court. It establishes a new process for transferring such cases back to juvenile court for further proceedings if rehabilitation efforts are unsuccessful. The bill also prohibits using statements made to mental health professionals during transfer hearings as evidence in later criminal trials. This affects minors accused of major crimes who have already undergone juvenile court processing.