We are wanting to move the safe the sources are kept in, but I think the inspectors would have a problem with the suggested site as it is in the prep room next to our fridge. Do we have to have the safe in a locked cupboard in the prep room rather than just on the wall of the prep room?
Really it should be in an area not frequently used by anyone. Failing that; (From CLEAPSS Guide L093);
"The store room must be restricted to science staff only, using a good-quality unique lock. Do not store radioactive sources in a teaching laboratory.
A lockable science store room off a prep room or off a laboratory is ideal; a lockable cupboard in a prep room is acceptable. A store room used by the cleaners, or a general stationery cupboard used by school staff, or a boiler room, or an outside store are all examples of completely unsuitable store rooms.
Ground floor store rooms with standard glazed windows on an external wall are too easily broken into. If this is your only realistic choice of store room, you will need to improve the physical security, for example by fitting obscured laminated glazing. We don’t advise fitting external bars etc across windows as it may unintentionally flag that there is ‘something inside worth stealing’."