You asked

Please provide the number of deaths by suicide of fire fighters in the UK since 1939.

We said

Thank you for your request.

Information on deaths registered as suicide along with other special extracts and tabulations of mortality data for England and Wales are available to order (subject to legal frameworks, disclosure control, resources and agreements of costs, where appropriate). Such enquiries should be made to: mortality@ons.gov.uk. We recommend that you contact the Mortality Analysis team directly in order to discuss your data requirements in more detail.

As the only information that can be provided is already available to you via this route, we consider that s.21(1) applies to this request and the information does not have to be supplied under the terms of the Freedom of Information Act. S.21(1) is an absolute exemption and no consideration of the public interest test needs to be applied.