Everything else aside, in my view this underlines how dated prank phone calls made by radio presenters are, perhaps now they won't be done any more. I'm sure it was all new and cutting edge in the 1970s when Noel Edmonds was at his comedy peak but it seems very old hat now.
My pbs are similar: HM - about 1.41 10k - 41.57 and 5 miles 34.50 - all very much done in the days of my youth, and after a few months of practice including speed sessions/hilly runs to build up stamina.
The police have said that the 'RSPCA is leading the investigation' . This is odd; the RSPCA is just a charity, and while they may dress up like policemen, as far as I know they have no power to interview anyone or 'lead' the police.