The Representation of the People (Electoral Registration Data Schemes) Regulations 2011
These Regulations provide that, where there is a scheme in an order made under section 35 of the Political Parties and Elections Act 2009 authorising or requiring a person to provide information to an electoral registration officer, that officer may pass a copy of an electoral register that they have compiled (or part of it) to another person in order for the register to be compared with information kept by the person authorised or required to provide information under the scheme. Where a copy of the register is supplied to a person under these Regulations, that person may only supply the copy to another person, or use or disclose information contained in it which is not contained in the edited register, with the consent of the registration officer who supplied the copy.