They are tiled, as most rooms are in Spain--a good precaution against vermin, which unluckily is not infallible as regards fleas, which search the traveller in Spain even more rigorously than the customs officers or the Civil Guards.
In Paxton's case of 1761, the Massachusetts Superior Court had declared legal the issuance of general writs of assistance to customs officers to search any house for specific goods for which customs had not been paid.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "customs officers" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.