For ECB Guidance on vetting checks, please go to http://static.ecb.co.uk/files/c-having-the-right-people-in-place-2-ecb-guidance-on-roles-in-cricket-that-require-a-vetting-check-12631.pdf. This will show the roles that require a vetting check.
For details of how to determine which roles are 'regulated activity' with children in cricket go to: http://static.ecb.co.uk/files/c-having-the-right-people-in-place-3-how-to-determine-which-roles-are-ocyregulated-activityoco-with-children-in-cricket-12633.pdf