Does a poorly planned inquiry do more harm than good ?

http://www.telegraph.co.uk/news/2016/10/02/theresa-may-needs-to-admit-her-child-abuse-inquiry-has-gone-off/

Like the house in the Gospel parable, the Independent Inquiry into Child Sexual Abuse (Iicsa) is built on sand. So if it continues on its present foundations, it is certain to fall.

You cannot have a law-based inquiry which mixes the following: individual accusations against bodies or persons, a “Truth Project” in which anyone who wants can send in his or her uncorroborated experiences of child sexual abuse, and an investigation into all state and non-state institutional mishandlings of child abuse in living memory.

Two years on, the subsidence in the foundations laid by the then Home Secretary, Theresa May, are widely visible. The inquiry is on its fourth chairman, Alexis Jay. She is a child abuse expert but, not being a lawyer, has little knowledge of how such an inquiry should be conducted.