 00, he was either in the presence of police officers or in a single-person cell. Because Traylor was either in the presence of police officers or in a single-person cell at all times, the State should have been able to prove whether the defendant sustained his injuries before or after his confession, as well as the cause of his injuries. See Woods, 000 Ill.0d at 000, 000 Ill.Dec. 000, 000 N.E.0d at 00. Because the State did not adduce clear and convincing evidence that Traylor's injuries were 