"According to Exaro, the investigative website, detectives have been given access to 33 boxes of previously unknown paperwork as part of their investigation into historical claims that boys were sexually abused at a special school where Cyril Smith was a governor.
The archived documents include minutes of governors’ meetings, case notes and other sensitive material that relates to Knowl View special school in Rochdale.
Exaro identified the archive at Rochdale Borough Council after making a request to the local authority under the Freedom of Information Act for material related to the school.
The Council’s Deputy Chief Executive, Linda Fisher, replied by saying that she was refusing to supply the material partly because disclosure "is likely to prejudice the law enforcement or other regulatory activity carried out by the Council."
She continued: "The police have specifically stated that we should not disclose any documentation at this stage as they are concerned that the disclosure would have the potential to prejudice their inquiries."
Police confirmed to Exaro that they have asked officials at Rochdale Council to examine all the files that it holds on Knowl View. "