A committee of MPs is to examine the 27 different areas of concern highlighted by the initial stages of a scrapped inquiry into rendition and torture, the Government said.
Ken Clarke told MPs the initial findings of Sir Peter Gibson's inquiry would be passed to the Intelligence and Security Committee, with a view to a report coming back at the end of next year.
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Two knives were found at the scene in Islington, North London, and the suspects fled on foot before being arrested.
The violence began after a counter-protester allegedly doused a female rally organiser with pepper spray.
As temperatures climb through the day, the warmest spots are likely to be across western parts of Northern Ireland and western Scotland.