Did you read the article ODB?
Let me help you out here. It says "The men, who are all of British Pakistani heritage, targeted and groomed the girls, who were aged between 13 and 16, over seven years between 1998 and 2005." (my italics)
There were 20,000 more police officers in England and Wales in 2005 than there are today, but SYP, as well as the social services and the local authority, chose to ignore what was happening, partly because these agencies prioritised community relations over the welfare of poor, working class girls.
Your police cuts argument is a red herring.