He said: “There’s no case for having a referendum at that time.
“There’s no case because the two arguments she put forward for a referendum have not been met.
“One was that we had completed and knew what the relationship with Europe was going to be.
“We don’t know, we know we’re leaving but we don’t know what the future relationship is.”
The former Labour leader continued: “Now by the time her timetable is out of date, we will still not have had an agreement on what the future relationship with Europe is, so that argument has fallen.
“She then said that she would have a referendum if she would have a consistent majority of support in Scotland for independence.
“There is no such majority in Scotland at the moment that’s either been consistent or decisive or overwhelming.
“In fact there is no consensus on it and it’s a divided Scotland on these issues.”
Mr Brown added: “So the point I think I would make is her two criterion have not been met.
“But anyway, she said, as Boris Johnson reminded us, that this was a once in a generation event.
“Clearly five years after the last referendum is not a generation having passed.”
Ms Sturgeon was already dealt a blow when Boris Johnson formally rejected a call for a second independence referendum.
The Prime Minister said a referendum would "continue the political stagnation Scotland has seen for the past decade".
He cited the First Minister’s previous pledge that the 2014 referendum would be a "once in a generation" vote.
Ms Sturgeon tweeted that the Tories were attempting to "deny democracy".
In her election victory speech, the SNP leader said a rejection from Mr Johnson would “drive a coach and horses through the very idea that is supposed to underpin the UK”.
https://www.express.co.uk/news/uk/1231053/nicola-sturgeon-snp-gordon-brown-labour-scotland-indyref2-scottish-independence