The twist will be that the offer will be time-limited – the First Minister will have to hold a poll before August 2013.
The implication is that if he fails to take it up, then Westminster will seize the initiative and hold its own referendum.
DAVID Cameron will throw down the gauntlet to Alex Salmond this week, challenging him to accept an offer from Westminster that would enable Holyrood to hold a legally binding referendum on Scottish independence.
The twist will be that the offer will be time-limited – the First Minister will have to hold a poll before August 2013.
The implication is that if he fails to take it up, then Westminster will seize the initiative and hold its own referendum.