The allegations that led to social workers removing over 100 children from the care of their parents resulted from diagnoses of child sexual abuse by a single doctor and reinforcing, but flawed, investigative techniques by social workers, notably in interviewing the alleged child victims. By the time the court cases collapsed under suspect defenses that exposed the incorrect medical diagnoses and manipulative interviews of the children, some children had not seen their parents for many months. A subsequent public inquiry by Her Majesty's Government led to the publication of strict operating guidelines for investigative and court procedures that involve alleged child victims. The report, called "The Memorandum of Good Practice on Video Recorded Interviews With Child Witnesses for Criminal Proceedings" (1992), is intended to ensure fairness to the suspect and improve confidence in the testimony given by the child. The Memorandum states fundamental rules that must be followed if a videotaped interview with a child is to be presented as evidence in court. Further, in a court hearing, children can present evidential testimony via videotape and then be cross examined through a television link. The Memorandum was revised in 1999 and retitled, "Achieving Best Evidence in Criminal Proceedings." This document is currently used as the primary tool for professionals in England and Wales charged with obtaining evidence from a child victim about suspected abuse. Under current protocol, a specially trained police officer and social worker jointly interview a child victim, following uniform procedures designed to facilitate reliable information from the child.