This was a reply by stanmapstone on a similar query - he is usually spot on with the legalities of searching
Local Register Offices are required by law to hold indexes to their registers. You can carry out a General Search of the indexes yourself at the office. The fee for a General Search is £18.00. The indexes, but not the actual registers can be searched for up to six consecutive hours within the opening hours of the Office. You usually must make an appointment.
Stan
Unfortunately the advice is wrong on this occasion, perhaps it has been taken out of context.
There seems to be confusion between a local Registrar and the Superintendent Registrar.
A local Registrar holds the current civil registers of Births, Marriages and Deaths and these as they are not indexed they may be searched in person by any member of the public free of charge at any time the office is open for business.
When a register is filled it is forwarded to the Superintendent Registrar
The Superintendent Registrar hold transcripts of births, marriages and deaths and also the filled registers of births, marriages and deaths that have been forwarded to him/her by the Registrars.
The Superintendent Registrar has the responsibility of making an index of these records.
Only the index of registers in the keeping of the Superintendent Registrar may be searched not the registers themselves.
In various districts of the country the Registrar and the Superintendent Registrar may share the same building, however that does not alter the fact that registers in the keeping of a Registrar may be search by members of the public in person.
Cheers
Guy
PS the Freedom of Information Act will not help at all as the information is available already by purchasing the appropriate certificate.