They can get into the locks and leave slips stating that the contents were inspected.
From personal experience, they will open locked luggage to investigate highly suspicious items such as gardenias wrapped in damp paper towels in plastic containers, frozen barbecue or coconut in plastic bags, bags of carrots or apples, grits, seashells, or especially heavy bags.
” highly suspicious items such as gardenias wrapped in damp paper towels in plastic containers”
Somalis smuggle in khat, which we declared to be a higly dangerous narcotic on Schedule A of the drug laws.
Your comment is too funny (and all too true).