The police execute a valid arrest warrant and detain Donny Defendant. They read him his Miranda warnings and begin questioning him. He is silent at first until the police officer beats in Defendant's head with a crowbar. Donny Defendant confesses to the crime.
Is the statement admissible?
a) No, because Defendant's confession is inadmissible hearsay.
b) No, because the crowbar was purchased through interstate commerce.
c) Yes, because he was read his Miranda rights and the interrogation was therefore valid.
d) Yes, because all criminal confessions are admissible. What are you, some sort of pinko criminal-lover? Answer (d), you sissy.
Then you start looking for option (e)