Sounds reasonable to me - when the Brits arrested the suspects in the recent airline plot, they put up all of the accused families in expensive London hotels with unlimited room service and all the free (wire-tapped!) international phone calls they could make! ;-)
I'm guessing they want to write up a nice search warrant on the dude and they've followed him enough to know if he had one. Supposed he had tossed a recent one. Could they still use it as evidence?
Regardless, 10 years have passed. We want to know what happened 10 years ago......AND BEFORE THAT UNTIL HE FLED THE COUNTRY.