Could a practising Catholic do a good, honest job of chairing the Royal Commission into Abuse in State Care and Faith-based Institutions?
Yes.
To disqualify chairman Sir Anand Satyanand simply on the basis of his own faith, rather than any deeds, would be to indulge intolerance.
https://www.stuff.co.nz/southland-times/opinion/111879792/royal-commission-deserves-neither-blind-faith-nor-sanctified-mistrust
https://www.stuff.co.nz/southland-times/opinion/111879792/royal-commission-deserves-neither-blind-faith-nor-sanctified-mistrust