
Hooray for Parliament!
Mind you I think that Ian Blair helped give the game away with this fuckwittage:
He said the police were "not in an auction" over the plan but believed 90 days was the right length of time needed because of the complexity and mass of evidence in terrorism cases.
"I do accept what we are putting forward is unknown in peacetime," he said.
"But I have never seen anything like what's happening at the moment. There are people out there in the UK plotting mass murder without warning."
He said he had thought hard about whether the police had entered a political debate.
But he said: "This is not in my view politics. This is our professional opinion."
Sir Ian said 90 days was not a "magic" figure and four months might be better.
See here for full story.
So in other words there was nothing special about 90 days and the police were out for as much time as they could get away with.