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Did the Leave.EU campaign accept millions of pounds during the Brexit campaign from "impermissible sources"?

Despite his insistence against any wrongdoing, the National Crime Agency is investigating Leave.EU's co-founder Arron Banks and his campaign's activity during the 2016 EU referendum.

Mr Banks and another senior campaign figure Liz Bilney were referred to the Agency by the Electoral Commission. Mr Banks sent the ÃÛÑ¿´«Ã½ a number of documents which, he said, demonstrated there was no wrongdoing.

Newsnight's John Sweeney examines them.

In a statement to Newsnight, Mr Banks said that the bank statements "clearly show no large amounts of money came into Rock Holdings.... There are no other bank accounts for Rock Holdings".

He added that allegations that Russian money was the source of the campaign funding are false.