The Welsh Cancer Intelligence and Surveillance Unit was established in 1997 when management responsibility for the registration of cancers was transferred to Velindre NHS Trust. All duties and responsibilities for cancer registration have been retained and in addition new roles are being developed.

"Cancer Intelligence" in relation to the Calman Hine Initiative for commissioning of cancer services.

"Cancer Surveillance" in support of the Welsh Assembly and the National Public Health service for Wales.

WCISU is a full member of the United Kingdom Association of Cancer Registries who work together to ensure both national and international standards for cancer registration are maintained.

Our primary aim is the systematic collection of information about cancer incidence and mortality within the resident population. Such information is used to make judgements about the demand for screening and treatment, the effectiveness of these services, epidemiological research into the causes of cancer, research into cancer prevention, clinical research and for the education of the public.