Kuwait Court of Cassation principle number 280

The investigator may conduct the investigation in the manner he considers achieves its purpose. Prolongation of the investigation. Does not affect the integrity of the accused's volition or vitiate his confession and does not in itself constitute the equivalent of coercion invalidating the confession, in fact or in law. The condition for this. That he does not adduce evidence that the investigator deliberately prolonged it without justification to exhaust the accused and influence his will. Assessment of this. Within the trial court's authority.