Terror Threat Level

[fender62]

from critical to severe, mmm how do they work that out.
http://www.dailymail.co.uk/news/article-4547546/Threat-level-reduced-critical-severe.html

[Mamyalynne]

I'm sure it's a complex procedure, there may be some links here to gain further details or maybe it isn't for us to know.

https://en.wikipedia.org/wiki/UK_Threat_Levels

[dannyk13]

Threat levels are based on the known current intelligence,

[fiction-factory]

If it was always termed critical then there would be nowhere else for the indicator to go when the authorities become aware through intelligence of specific threats

[scooping]

Because they have intelligence reports.