The rule of non-arbitrary confession exclusion means that in criminal proceedings, only confessions made based on the free will of the prosecutor (confession of guilt) have the capacity for evidence; a confession that is compulsory against the will of the party or violates legal procedures is not a confession , but to force a confession.
Based on the above definition, which of the following meets the non-arbitrary confession exclusion rule?
The suspect, Smith, never admitted that he was guilty, so the police took turns to interrogate him