Is there evidence to connect the suspect with the crime, such as semen, fingerprints, or blood stains? Have hairs from the victim's cat been found on the suspect? Such evidence can pinpoint the identity of the perpetrator, help to reconstruct the scene of the crime, and provide a basis for evaluating statements made by the suspect.
而像精液、指紋、血跡，或是環境裡的物證如受害者家裡的貓毛黏在嫌犯身上等，不僅可辨認犯罪者的身分、重建案發現場，也可進一步檢驗嫌犯的供詞。