Excuse me barging into your Forum, treat it as a room inspection, if you like.
This question has been asked before, possibly here, possibly on ArmyNet and the basic answer was:
Room Inspections are required by QRs (I forget how often), so it's just a fact of life that it happens, it's nothing personal. (If you're subjected to frequent Inspections, perhaps it is personal after all, but there'll be a reason for it).
There is no requirement for the SNCO conducting the Inspection to be accompanied, but to avoid claims of theft or improper behaviour, it's usual for the SNCO to be accompanied. It's often felt best if a representative of the room or block is present, but this can't always be arranged.
There is no requirement for any notice to be given, but in the grown-up world, it's good manners (gives an opportunity for last week's pizza boxes to be disposed of and saves hassle for all those involved).
Whoever is conducting the Inspection can access any part of the room, including any drawers etc. If you don't want something to be seen, lock it away. If the person inspecting wants to see inside the locked cupboard, locker, drawer etc., he will have to make arrangements for you to open it, giving you more breathing space to hide your gay mags or whatever.
The purpose of the inspection is to ensure that the room is clean, maintained, and free of items that shouldn't be there. As your rooms are undoubtedly always maintained in this state, an Inspection shouldn't cause much grief, particularly if everyone (Juniors
and Seniors) adopts a grown-up attitude to it.