We have had advice from the Exeter Diocese stating that:-
We are aware that GDPR has raised some concerns regarding the renewal of the Electoral Roll. As the law currently stands, there is no need to amend the electoral roll forms, consent is not required. An informative note explaining the legal bases will be added to the forms in due course but the legal position is not dependent on this note. The Church of England’s GDPR Team have produced guidance to clarify these issues (link below). They have also produced an electoral roll Privacy Notice which explains the GDPR issues for those individuals applying to the electoral roll. You should publish this on your website and/or give it to people who request an application form.
Just under 30 years ago I met Margaret Thatcher. Well almost – I was in the same room. Whatever you may think of her, she was a scientist, and thankfully understood at a pivotal stage that we humans may be changing our climate. She was therefore a strong advocate for new government funding of research, and