Legal analysis: lawyers must pass the legal professional qualification examination and obtain the lawyer's practice certificate according to law before they can practice. According to the nature of work, lawyers can be divided into full-time lawyers and part-time lawyers; According to the scope of business, lawyers can be divided into civil lawyers, criminal lawyers and administrative lawyers; According to clients and working status, lawyers can be divided into social lawyers, corporate lawyers and public lawyers. Lawyer's business is mainly divided into litigation business and non-litigation business.
Legal basis: Article 3 of the Lawyers Law of People's Republic of China (PRC), lawyers must abide by the Constitution and laws, and strictly abide by lawyers' professional ethics and practice discipline. Lawyers' practice must be based on facts and take the law as the criterion. Lawyers' practice should be supervised by the state, society and the parties concerned. Lawyers' legal practice is protected by law, and no organization or individual may infringe upon the legitimate rights and interests of lawyers.