BNP announces UK immigration policy to offer £50,000 to leave the country

Mr Griffin said this would be a voluntary programme for those who were not defined as White British.

The party UK immigration policy also includes shutting Britain’s doors, except to those immigrants whose entry would suit the UK, such as physicists with specialist skills.

"We mean that the doors are going to be shut, because Britain's full. We are the most overcrowded country in Europe. If you are talking about Polish plumbers or Afghan refugees, the doors are going to be shut, because Britain is full," Mr Griffin told BBC Radio 4's Today programme. 

Mr Giffin did give an example of when Britain may accept an immigrant: a Japanese physicist needed to help with the UK's nuclear programme would be somebody who could be admitted under the party's plans.

The UK Visa Bureau is an independent consulting company specialising in  helping people lodging their applications for a UK visa with the British High Commission.