In 2018, Shahmir Sanni alleged to the Observer that Vote Leave had broken electoral law by purporting to donate £625,000 to a youth group, BeLeave, but instead funnelled it directly to its data and ad-targeting firm AggregateIQ.

A Brexit campaigner has told Channel 4 News that Vote Leave cheated in the 2016 referendum by over-spending.

The whistleblower at the heart of the scandal surrounding the main Brexit campaign has called for a police investigation into allegations that the group breached electoral spending rules.

The “corrupt and illegal practices” of the Vote Leave campaign in the 2016 referendum undermine the validity of the decision to leave the EU, the high court has been told. Relying on findings made by the Electoral Commission about overspending by the pro-Brexit campaign, British people living in Europe have launched a legal case arguing the referendum result should in effect be set aside.

The development of Brexit from a fringe movement into a dominant political project coincided chronologically not only with a long period of patient and sustained campaigning and lobbying, and with a lucky sequence of favourable shifts of circumstance and forces, but also with the internal development of one key external force, the politics and ideology of the Putin regime.

Michael Gove and Boris Johnson also among key figures facing growing calls to account for campaign’s illegal behaviour.

The UK’s Electoral Commission has published the results of a near nine-month-long investigation into Brexit referendum spending and has found that the official Vote Leave campaign broke the law by breaching election campaign spending limits.

Theresa May knew leave campaigners may have breached financial limits during the EU referendum campaign when she triggered article 50 initiating Brexit, her lawyers have admitted.

Legal bid driven by concerns that process had been halted by ‘political sensitivities’. / A group including three MPs has begun a legal bid to challenge police over delays to the investigation into alleged offences by leave campaigners in the Brexit referendum.

The police force investigating alleged breaches of election law by Leave campaigners during the EU referendum could decide if they believe any offences were committed "within weeks".

Sanni claims that a donation of £625,000 was made by Vote Leave to an independent referendum campaign organisation called BeLeave.

A shadowy global operation involving big data, billionaire friends of Trump and the disparate forces of the Leave campaign influenced the result of the EU referendum. As Britain heads to the polls again, is our electoral process still fit for purpose?

Brexit campaign group Vote Leave has been fined £61,000 and referred to the police after an Electoral Commission probe said it broke electoral law. / The watchdog said it exceeded its £7m spending limit by funnelling £675,315 through pro-Brexit youth group BeLeave.

Group was fined £61,000 after Electoral Commission ruled it overspent on 2016 Brexit push.

Judicial review dismisses attempt to have Electoral Commission ruling thrown out.

The official Vote Leave campaign spent more than £2.7m on targeting ads at specific groups of people on Facebook - helping it to win the 2016 EU referendum.

Illegal fund activity linked to Brexit being ignored in belief ‘the people have spoken’.

Shahmir Sanni co-founded BeLeave, an offshoot of the Vote Leave campaign, during the EU Referendum. He turned whistleblower last year when he exposed its law-breaking. Here he reveals how two of the contenders to replace Theresa May cannot absolve themselves of responsibility.