The head of policy with one of the UK's leading disabled people's charities took prime minister Tony Blair by surprise when he collared him at a Downing Street party last week.
John Knight, the Leonard Cheshire Foundation's director of external policy, challenged the prime minister to clarify statements made about tightening up benefits for disabled people.
The disability lobby is concerned that the Government may force disabled people to "re-prove
their disability by attending work-focused interviews and physical assessments. Such a move would be degrading and could worsen medical conditions, said Knight.
Government research into allocation of long-term disability benefit revealed 0.5 per cent of cases were wrongfully awarded, he said.