BBC Political Editor Nick Robinson said it was an extraordinary development but one that had been expected for some weeks.
But he said the fact that Mr Blair was not interviewed under caution was significant as it implied that police did not intend to bring any charges against him.
But he said it was an embarrassment for the prime minister who had promised to make politics "whiter than white" when he came to power in 1997.
But he said the fact that Mr Blair was not interviewed under caution was significant as it implied that police did not intend to bring any charges against him.
But he said it was an embarrassment for the prime minister who had promised to make politics "whiter than white" when he came to power in 1997.
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