Further detailed information about accessing public information can be found on the following websites:

Environmental Information Regulations 2004 -
www.legislation.gov.uk/uksi/2004/3391/contents/made
The full text of the regulations can be found here.

DEFRA - www.defra.gov.uk 
For an explanation of the EIRs and their exceptions

Information Commissioner - www.ico.gov.uk/
Further information about the Data Protection Act, the Freedom of Information Act, and the Environmental Information Regulations from the body that regulates and enforces them

DirectGov - www.direct.gov.uk/en/governmentcitizensandrights/yourrightsandresponsibilities/dg_4003239 Find out how freedom of information works, how to make an information request and what to do if your request is refused