Final answer:
The 8th Amendment guarantees protection against torture for criminal suspects in jail.
Explanation:
The amendment that guarantees criminal suspects will not be tortured while in jail is the 8th Amendment.
The 8th Amendment prohibits excessive fines, bails, and cruel and unusual punishments. This ensures that individuals, including criminal suspects, are protected from any form of torture while in custody.
In the given scenario of a suspected-terrorist being tortured, the lawyer invoking the rights of the client aligns with the protections provided by the 8th Amendment against cruel and unusual punishments.
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