A registrar to whom a civil partnership notice is given may require the person giving it to provide him with specified evidence relating to each proposed civil partner.
Such a requirement may be imposed at any time before the registrar issues the civil partnership schedule under section 143.
“Specified evidence”, in relation to a person, means such evidence as may be specified in guidance issued by the Registrar General—
of the person’s name and surname,
of the person’s age,
as to whether the person is or has been a civil partner or lawfully married, and
of the person’s nationality.