Disability benefits in England and Wales not fit for purpose, Timms review to find

Exclusive: Landmark review by disability minister will call for dehumanising' assessment system to be redrawn

• What is the Timms review into Pip and what is it likely to conclude?

Disability benefits in England and Wales are not fit for purpose" and the entire assessment system must be redrawn as part of a radical welfare overhaul, the government's landmark review of personal independence payments will say.

The Guardian understands the review will conclude that the points-based system of assessment is in effect worthless because of the rising number of new conditions - particularly relating to mental health - that can fluctuate considerably in severity.