Criminal defense lawyer is the abbreviation of criminal defense lawyer, which refers to a lawyer who has obtained the Lawyer's Practice Certificate of People's Republic of China (PRC) and takes criminal defense legal services as his whole business or main business, and provides criminal defense for criminal suspects and defendants.
Criminal defense is generally divided into three stages, namely, criminal investigation stage, criminal examination and prosecution stage and criminal trial (first instance and second instance) stage. At different stages of criminal proceedings, the work content of lawyers is different.