If you stated that day to your LA they may come in on 19th and do an admin check. We had one on Friday morning as part of the 10% of schools being checked. My Head had to show where the key was, unlock the cupboard and show the materials had been checked off and had not been opened. We had to show the rooms where the check was being administered to ensure it was a familiar and comfortable room etc. Lots of boxes were then ticked off! I hope people don't open before just in case they are checked. Apparently has to be reported to the standards agency.