a) To those holding an inquiry under section 17 of the 2002 Act, section 81 of the Children Act 1989 or section 1 of the Inquires Act 2005 for the purposes of such an inquiry.
a) I'r rheini sy'n cynnal ymchwiliad o dan adran 17 o Ddeddf 2002, adran 81 o Ddeddf Plant 1989 neu adran 1 o Ddeddf Ymchwiliadau 2005 at ddibenion ymchwiliad o'r fath.