Choose the appropriate preposition for the given sentence:
Any illegal goods will be confiscated ______ the customs officials.

- The preposition 'by' is used 'usually after a passive verb, to show who or what does, creates or causes something'.
- For example,
I was frightened by the noise.
A novel is written by him.
- According to the rule and examples that are given above, 'by' is the correct choice for the blank.
Complete Sentence: Any illegal goods will be confiscated by the customs officers.