As chairman of New Zealand’s Independent Police Conduct Authority, she conducted an inquiry into the policing of child abuse in New Zealand
Child Sexual Abuse (Independent Panel Inquiry) at Column 276.
To the best of my knowledge nobody has made a serious study of whether or not Justice Goddard's inquiry was competent or better or worse.
I offer the following links to allow interested researchers to arrive at their own assessment of Justice Goddard's past work on child abuse, as attributed by Theresa May.
The Inquiry's findings were published in two parts respectively, it seems on 18 May 2010 and 17 February 2011.
The New Zealand Independent Police Complaints Authority blurb for Part I is here:
Improvements to Police practices in child abuse investigations
Part I of the Report is here: Inquiry into Police Conduct, Practices, Policies and Procedures Relating to the Investigation of Child Abuse: Part I.
The IPCA blurb on Part II is here:
Authority urges continued momentum for change in abuse investigations
Part II of the Report is here: Inquiry into Police Conduct, Practices, Policies and Procedures Relating to the Investigation of Child Abuse, Part II.
I haven't yet had time to make my own assessment of what Theresa May attributed to Justice Goddard but hope to do so soon.