Shadow health minister Jamie Reed said: "The new chief inspector role is welcome and he is right to pilot his plans with a varied group of hospitals.
"Sir Mike Richards will have our support in exposing poor care in the A&Es, wards and elderly care services he visits.
"Four thousand nursing jobs have been lost on this Government's watch and A&E queues have reached their longest in a decade because of David Cameron's NHS betrayal."
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Thames Valley Police named the victims as Savaan Mundae, Jaspal Bahra, Thanh Nguyen and Captain Michael Green.
Mild & wet with winds whipping up
The Chancellor said he will use the Budget to "invest to secure a bright future", in a signal he is ready to usher in the end of austerity.