Can lawyers intervene after the police station files a case?

Legal subjectivity:

The time limit for lawyers to intervene in criminal cases is that the victims of public prosecution cases and their legal representatives or close relatives, and the parties involved in incidental civil actions and their legal representatives have the right to entrust agents ad litem from the date when the case is transferred for examination and prosecution. The private prosecutor and his legal representative in a case of private prosecution, and the parties to an incidental civil action and their legal representatives have the right to entrust an agent ad litem at any time. Other provisions of the law.

Legal objectivity:

Article 40 of the Criminal Procedure Law of People's Republic of China (PRC) * * * Since the people's procuratorate examines and prosecutes the case, the defense lawyer may consult, extract and copy the case file. Other defenders may also consult, extract and copy the above materials with the permission of the people's court or the people's procuratorate. Article 41 of the Criminal Procedure Law of People's Republic of China (PRC): Defenders have the right to apply to the People's Procuratorate and the People's Court for retrieval if they think that the evidence materials collected by the public security organs and people's procuratorates in the process of investigation, examination and prosecution to prove the innocence of the criminal suspect or defendant or the light crime have not been submitted. Article 42 of the Criminal Procedure Law of People's Republic of China (PRC) * * * Defenders shall promptly inform the public security organs and people's procuratorates of the evidence that the criminal suspect is not at the scene of the crime, has not reached the age of criminal responsibility, and is a mental patient who is not criminally responsible according to law.