Переведите следующие предложения, используя пассивную конструкцию: the criminal is identified; the suspect was traced and located; the facts are gathered for court presentation, the division of the investigation into three phases is made for convenience of discussion, the same evidence is often used for three objectives, the criminal was identified as the perpetrator of the criminal acts, the identity of the criminal has been discovered through his confession, the guilt of the accused has been proved, the defendant was identified and associated with the crime scene: the facts are being established with the help of the witnesses.