> seen putting the weapon in a safe, where the combination was known to be written in a person's private papers Replace combination by password. Your example s

> seen putting the weapon in a safe, where the combination was known to be written in a person's private papers Replace combination by password. Your example still works. If evidence is "locked" on an encrypted storage device and the password is in unencrypted plaintext form, it can be still used to "crack" the encryption without effort. But could you force the suspect to tell you the safe combination in your example ?