Calderdale Metropolitan Borough Council have released a copy of the Calderdale Social Services Inquiry Report, July 1989  by B.Roycroft, B.Miles and D.Philp into the appointment of Dr R A Ryall. This release was in response to a Freedom of Information Request.
The report is in pdf format, is in two parts and will download on these links.
Please note that victims of abuse may be triggered by reading this report. Support may be obtained from the NAPAC website.  The National Association for People Abused in Childhood has a freephone helpline and gives links to local support groups. Another good site is Havoca 
Links and References
 Part 1 pdf https://www.whatdotheyknow.com/request/168066/response/421274/attach/3/FOI%2012693%20Report.pdf
 Whatdotheyknowwebsite FOI request website https://www.whatdotheyknow.com/
NAPAC website http://www.napac.org.uk/
 Havoca website http://www.havoca.org/HAVOCA_home.htm
cathyfox the truth will out