The FSA finally published on 18th December, 2014 the long awaited revised guidance on prevention of cross contamination by E Coli 0157 which are much more pragmatic and capable of being complied with.
You can access the guidance via the link below:
http://www.food.gov.uk/business-industry/guidancenotes/hygguid/ecoliguide
The advice and guidance in Cocoms food safety management systems and training complies with this guidance