In England or Wales, before you can marry or enter into a civil partnership, you must each give legal notice (in person and by appointment) in the district where you live or have resided for at least 7 clear days (prior to your appointment).
Your ceremony can take place after 28 clear days and within 12 months of giving notice.
If you live or have resided in the City of Leicester for at least 7 clear days, follow instructions on the Leicester City Council website.
If none of the above are relevant, follow instructions on the UK Government website.
The list of acceptable documents can be found on the UK Government website. They will need to be originals, not copies.