Rochdale Borough Safeguarding Children Board have published two serious case reviews, redacted. The first of six children and the second of one child.
or they can be downloaded from Rochdale Borough Safeguarding Children website 
The serious case review was announced by Rochdale Council last year after nine Asian men were convicted of the systematic grooming and sexual abuse of white girls in Greater Manchester .
An article from the Guardian  states that an internal police investigation, highlighted in the serious case review, also found a failure to recognise abuse.
Please note that victims of abuse may be triggered by reading this report. The Sanctuary for the Abused [A] has advice on how to prevent triggers. National Association for People Abused in Childhood [B] has a freephone helpline and has links to local support groups. Other useful sites are One in Four [C] and Havoca [D]
Links and References
 RBSC website http://www.rbscb.org/news.aspx?ID=23
 Search for serious case reviews https://www.basw.co.uk/resources/?issue=13
[A] Sanctuary for the Abused http://abusesanctuary.blogspot.co.uk/2006/07/for-survivors-coping-with-triggers-if.html
[B] NAPAC http://www.napac.org.uk/
[C] One in Four http://www.oneinfour.org.uk/
[D] Havoca http://www.havoca.org/HAVOCA_home.htm
cathyfox the truth will out