A security guard reported a break-in at a high-tech lab. He claimed he was knocked unconscious from behind by an intruder wearing heavy boots. Detective Sterling examined the guard's uniform and noticed the back of his shirt was completely dry while the rest of him was drenched in sweat from a humid summer night. Sterling arrested the guard for staging the break-in. Why?
The guard was lying face down on the floor.
If the guard had been upright when struck from behind, his entire shirt would show uniform sweat patterns. A dry back means he was lying face down on the floor for an extended period, faking unconsciousness.
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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