Salmond: Cameron should 'butt out' of the independence referendum
11 January 2012 Last updated at 11:21 GMT
The Scottish Secretary Michael Moore has said he hopes the row over the independence referendum can be worked out amicably and would not end up in the courts.
The Scottish government has said it has a mandate to hold the vote in the autumn of 2014 but ministers at Westminster say that would be unlawful under current devolved powers.
They are prepared to give Holyrood the authority to hold a binding vote provided its a single question, is overseen by the Electoral Commission and the minimum voting age is 18.
First Minister Alex Salmond told BBC Good Morning Scotland he thinks Mr Moore is wrong about the voting age.