Ministers are warning of at least 10 years of "uncertainty" if the UK votes to leave the EU - but rival campaigners call the claim "ludicrous".

Here's a recap of the main stories so far this Sunday.

• The campaign to leave the EU represents hope over pessimism, says Iain Duncan Smith, as he dismisses suggestions a UK exit would be a "leap into the dark".  
• The work and pensions secretary tells the BBC that leaving would be a "stride into the light", enabling the UK to trade freely and control migration.  
• Foreign Secretary Philip Hammond defends plans to prevent ministers who oppose EU membership from seeing certain government documents.  
• Mervyn King, the former Bank of England boss, warns in a new book that another financial crisis is "certain", and may come "sooner rather than later".  
• Plans to shake-up the way Welsh devolution works need to be put on hold, a committee of MPs has said.  

More drug-drivers are being arrested and convicted since new laws were introduced in England and Wales last year, the government has said.

The Department for Transport cited figures, external from Cheshire Police that showed arrests there were up 800% to 530 from 70 in the previous year.

Legislation was brought in covering legal driving limits for 17 illegal and prescription drugs in March 2015.

Previously, police had to show driving was impaired by drugs to prosecute. Read more

BBC Radio 4

BBC Radio 4

The Andrew Marr Show

The Andrew Marr Show

BBC Radio 4

Labour MP Alan Johnson, who is chairing the Labour In for Britain campaign, has admitted that the Remain message is “not snappy enough”. Speaking to the Sunday Politics, he said it is a “complex argument” compared to the Leave campaign which he called “simplistic”.

The former Home Secretary also admitted there is no guarantee of getting net EU migration down if Britain remains in the European Union.

The former Conservative leader Lord Howard, who is campaigning to leave the EU, says leaving will be 'an unknown' but he can guarantee that it will restore Britain's democracy.

Speaking to the Sunday Politics, he says Theresa May is wrong to believe remaining in the EU is important for tackling crime and terror and says the UK would come to an “arrangement” on keeping parts of the European Arrest Warrant if it left the EU.

He also told Andrew Neil that he finds it “painful” to be on the opposite side of the EU row to David Cameron.

The campaign to leave the EU represents hope over pessimism, says Iain Duncan Smith, as he dismisses suggestions a UK exit would be a "leap into the dark".

Foreign Secretary Philip Hammond defends plans to prevent UK ministers who oppose EU membership from seeing certain government documents.

UKIP's Nigel Farage puts the issue of immigration at the centre of his argument for leaving the EU, saying he is hoping for 'independence day' in the UK.

Prime Minister David Cameron has been in Northern Ireland as part of his UK tour to persuade voters that membership of a reformed EU is in their best interests.

The leader of the Liberal Democrats Tim Farron tells Scottish party members they must fight to keep the UK within the European Union and challenge the SNP's concentration of power in Holyrood.

Jeremy Corbyn addresses crowds at a rally against the renewal of the Trident nuclear weapons system.

Scotland's First Minister addresses crowds at a rally against the renewal of the Trident nuclear weapons system.