 The charter created a National Review Board, which was assigned responsibility to commission a descriptive study, with the full cooperation of the dioceses and eparchies, of the nature and scope of the problem of sexual abuse of minors by clergy.The National Review Board engaged the John Jay College of Criminal Justice of the City University of New York to conduct a study analyzing allegations of sexual abuse in Catholic dioceses in United States.The period covered by the John Jay study began in 1950 and ended in 2002.