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Detective riddle

At the scene of the museum heist, the glass display case was shattered, but the alarm system was never tripped. The security guard swore he never turned it off. How did the thief bypass it?

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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