My feeling is, OK, perhaps we should substitute my prejudice is there, that any detailed examination of this movie is going to find a large number of incorrect statistics like that.
Sir Alan says that many schools under or over-estimate the number of pupils with special needs, and that this leads to an incorrect level of provision for these pupils.
ACS-designed software automatically routes work to the next available employee and can automatically dial the number if an employee has to call a doctor's office to chase down incorrect information.