On the third day of the trial of the London bombers, the jury saw a new twist to the plot.  Evidence was provided by two police officers who had been asked to watch the suspects who had been reported as suspicious.  
Fifteen months prior to the London bombings, Muktar Said Ibrahim, 28, was spotted at Bay Brown farm in Landale in the Lake District.  The two officers said that there were at least twenty Muslims who were staying in tents and had moved themselves well away from any other holiday makers at the top of the campsite, behind a dry stone wall.  DC Philip Marshal said that "Some had rucksacks.  They didn't appear to be running randomly. It was a series of men in a line, running." 
This wasn't the only incidence which Mr. Ibrahim was involved in.  Several months later he was arrested in Oxford street for distributing Islamic literature, and he was stopped by a special branch of Heathrow police from boarding a flight bound for Islamabad.  After being questioned for 4 hours, a Samsung video recorder was found in his possession which was identical to one that was found in the possesion of Hussan Osman in Rome.