But all these items, plus rail and other health pressures, are itemised in the public spending audit. And there aren't many more easily conceivable unforeseen large pressures from other departments, which get increasingly small to account for this

So using last year's pressures as a guide and excluding itemised lines in Rachel Reeves' statement, I get to about £3.5bn of other pressures - a far cry from the £8.6bn. What's in the other £5bn? The Treasury should release this information and not hide behind QA and supposed 'chilling effects'