Lawyers go to the police station to retrieve the statement need to provide what materials

Legal analysis: lawyers practice qualification certificate, power of attorney, legal aid official letter, ID card. Legal basis: "the people's republic of china *** and the criminal procedure law" article 40 defense lawyers from the people's procuratorate on the case review and prosecution date, may inspect, excerpts, copy the case file materials. Other defenders, with the permission of the people's court or people's procuratorate, may also inspect, excerpt or copy the said materials. Article 41 If the defender believes that the evidence materials collected by the public security organ or the people's procuratorate during the investigation and examination and prosecution to prove the innocence or mitigated guilt of the suspect or defendant have not been submitted, he or she has the right to apply to the people's procuratorate or people's court for retrieval of such materials. Article 42 The evidence collected by the defense about the criminal suspect was not at the scene of the crime, has not reached the age of criminal responsibility, and belongs to the law not criminally responsible mental patients, shall promptly inform the public security organs, the people's procuratorate.