Calls to empty Scottish prisons of short-term prisoners amid the coronavirus crisis have accelerated after revelations that some are sharing triple rooms.Overcrowding has meant many prisoners have to share bunk beds with a cellmate - which was meant to be phased put more than 30 years ago.But it has emerged that some cons at Barlinnie in Glasgow are being forced to sleep on mattresses on the floor, which are kept under bunk beds during the day.Prisoners showing symptoms of Covid.19 have been forced to “self isolate” in cells alongside people who do not show symptoms, with the Scottish Prison Service accepting the inevitability of them also falling victim.Scotland’s Justice Secretary Humza Yousaf has said he will consider prisoner release