Thanks for replying. I'm not sure of the background of those arrested - we were exploring whether we're too worried to leave kids alone in recent times, or whether parents would prefer clearer guidance/legislation - or does it depend on each child? I've been looking for people who'd be interested in being on air - but our reporter has headed to Bromley now! If you want to see the end result -- it'll be on BBC London News, BBC One tonight at 6.30pm