A Day Out in Fulham

Why is it impossible for a jury trial to be conducted these days without the jurors getting a charabanc trip to the scene of the crime, and any other interesting sights in the vicinity? This almost never used to happen, but now it's routine. Yesterday's excursion was especially bizarre, as not only the judge but the defendant ('sweating profusely') also went along for the ride. What on earth was the point? This is a retrial anyway, of which the facts are well known - indeed, the locations visited have been on TV many times. I thought the point of retrials was to re-examine the evidence, not to go along and gawp at the outside of the defendant's home. No wonder trials take so long.