Mr Nuttall criticised 'moral relativism and political correctness'
In a passionate eve of election appeal, the Ukip leader said that Islamist extremists who are shown to be "a clear and present danger" to the British people should be stripped of their citizenships and banned from reentering the country.
He also demanded for "mosques that preach Wahhabism or are extreme forms of Islam and poison the minds of young people within the community" to be "shut down".
He added: "Moreover I also believe that the funding of mosques by Saudi Arabia and indeed Qatar should be cut immediately."
He also said the Government's anti-extremism Prevent strategy should be "redoubled".
"It is in no way unreasonable to expect any British citizen or resident to report concerns that another may be on the path towards committing horrific violence – in fact I would suggest it is the bare minimum that we should demand of any decent person in our country.
"Ukip therefore believes that Prevent should not be dropped – in fact it should be redoubled."
UKIP Leader Paul Nuttall waits for food in a pie and mash shop as he campaigns
Mr Nuttall said anyone who went to fight for ISIS should have their passport revoked
The Ukip leader earlier said he "would not take anything off the table" in the possible response to terror, including internment of suspected jihadis.
Mr Nuttall said: "I believe that if anybody goes out to support or fight for Islamic State in the Middle East, you should have your passport revoked and you should never, ever be allowed back into this country."
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The UKIP leader called for PC Keith Palmer to receive a medal for gallantry
Mr Nuttall also said that the police officers and civilians who stood up against the terrorists in Westminster in March and in the London Bridge attack on Saturday, including PC Keith Palmer, Sunday Express business editor Geoff Ho and many other, should receive medals for gallantry.
He said: “The fact that there are an immense number of examples of individual bravery just goes to show how great the British people actually are.”
UKIP MEP Paul Nuttall visits the Roma ghetto in Sofia Wed, February 1, 2017
Fakulteta district of Sofia, Bulgaria where 55,000 Bulgarian romas live in exteme poverty
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Roma children lie in squalor as they cry for food
The Ukip leader also issued a “stop Corbyn” plea saying that voters in the 200 seats where he said: “All the criticisms I have of [Theresa] May pale into complete insignificance in comparison to the prospect of a Jeremy Corbyn or Diane Abbott government.
“It would be reckless in my opinion to have as Prime Minister in these dangerous times someone who opposed every single piece of anti-terrorism legislation put forward, somebody who has gone out of his way to be friends of terror groups in both Northern Ireland and the Middle East. someone who has opposed allowing the police to shoot to kill when confronted with armed terrorists.”