Security guards blocked the path of columnist and activist George Monbiot, who tried to make the arrest as Mr Bolton left the stage.
The former ambassador - a key advisor to President George W Bush who argued strongly in favour of invading Iraq - had been giving a talk on international relations to more than 600 people at the literary festival.
Mr Monbiot was blocked by two heavily-built security guards at the end of the one-and-a-half hour appearance, before he could serve a "charge sheet" on him.
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