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Detective riddle

A smuggler was caught trying to cross the border with a hollowed-out wooden walking cane filled with gold dust. The border guard poured the gold out, inspected the cane, found it otherwise empty, and let him pass. Detective Reed arrived later and arrested the guard for corruption. What did the guard miss?

About this riddle

Detective riddles are tiny mysteries. Look for the detail in the story that does not fit; it is usually the clue that solves the case.

Difficulty: Medium. More like this: Detective riddles with answers or try Truth & Lie Island for a different kind of puzzle.

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