Yes, the CAA can.
Go to
www.srg.caa.co.uk
Click "Personnel Licensing" near bottom in menu on left.
Click "Flight Crew Licensing" in new menu onleft
Click "Standards Documents" in new menu on left.
Click the title (blue coloured) of Standards Document 1 "Notes for the guidance of applicants taking the initial instrument rating skill test (aeroplanes).
Read it.