Lawyers are responsible for investigation and evidence collection.

legal analysis: if the case requires, lawyers are responsible for collecting evidence. Although the law does not fully open lawyers' right to investigate and collect evidence, lawyers can apply to the court for an investigation order if they want to investigate and collect evidence that the parties cannot obtain, and then the lawyers will go to the relevant units with the investigation order to investigate and collect evidence within the scope of the investigation order.

Legal basis: "

Legal basis: Article 35 of the Lawyers Law of People's Republic of China (PRC) may, according to the needs of the case, apply to the people's procuratorate or the people's court to collect and obtain evidence or apply to the people's court to notify witnesses to testify in court. Lawyers who investigate and collect evidence on their own can undertake legal affairs to units or individuals related to investigation and collection of evidence with the lawyer's practice certificate and the certificate of law firm.