Criticism of the Work Capability Assessment oversaw the study" and named the lead experts as a professor of psychiatry, a consultant psychiatrist in learning disability, a professor of rheumatology, and an expert in human resources. The review's conclusion was that "the WCA produced consistent results on the whole, and is an accurate indicator of work capability compared with expert opinion". But the following year the firm that had carried out millions of WCAs on behalf of the DWP since 2008 said it had come to the conclusion that "in its current form, the WCA is not working for claimants, for DWP or for Atos Healthcare". The
Incapacity Benefit up by the examining doctor and used by Job Centre staff to plan ways to boost recipients' employability, in the hope of returning them to work. This new test was also used to assess some fresh claims for Incapacity Benefit. In 2004, the caseload peaked at just under 2,500,000 then began to fall slowly. In late 2008, New Labour replaced Incapacity Benefit with Employment and Support Allowance (ESA) for new claims and yet another eligibility test was introduced: the Work Capability Assessment. At the same time, capacity was boosted by bringing in nurses to carry out the bulk of the