# What Deception and Evidence means in The Great Airport Mystery

> The criminals plant false evidence (a sweater and knife) to frame the Hardy boys, highlighting how appearances can be manipulated and how crucial careful investigation is to uncover the truth.

## Explanation

The criminals plant false evidence (a sweater and knife) to frame the Hardy boys, highlighting how appearances can be manipulated and how crucial careful investigation is to uncover the truth.

The pilot falsely accuses the boys, setting up a theme of unjust blame and the need for evidence.

Ducroy attempts to shift blame despite his intoxication, while Jim Perrin provides honest testimony as evidence.

Ducroy's lies are contradicted by the post office investigation, but he continues to deceive.

The boys' recognition of Ducroy at the cabin hints at his deceptive activities, and they keep this information secret to gather more evidence.

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