They will only let you take in
exactly what it says on the list of allowed items. I did ATPL air law a couple of months ago and wasn't allowed to use the CASR. You will also have to remove any additional parts of the CAO that are not on the list. I even had a minor disagreement with the supervisor over a ruler I had, she wasn't going to let me keep it as it had holes in it (so it could be inserted into a binder) and thought it was some kind on non-regulation nav equipment (even though it was marked in centimetres
).