When police burst into Ismail Shalabi's flat in the small western German town of Beckum on 23 April, they instantly knew they had hit the jackpot.
On one wall a large portrait of Osama bin Laden gazed down as the armed officers scrambled through the door. There were dozens of books and leaflets in the rooms praising bin Laden. It was a shrine to the terrorist.
Another terror cell in Europe had been exposed. But, as other German agents made 19 more raids, sweeping up weapons and suspects, a familiar name emerged as one of the cell's organisers and inspirations. It was a name also well-known to British police - Abu Qatada.