After the lawyer is successfully appointed, you can go to the detention center to meet with the client. According to the law, a criminal suspect has the right to entrust a defender from the first time he is interrogated or takes compulsory measures by the investigation agency; during the investigation, he can only entrust a lawyer as a defender. The defendant has the right to entrust a defender at any time. Defense lawyers may meet and communicate with criminal suspects and defendants in custody. Other defenders may also meet and communicate with criminal suspects and defendants in custody with the permission of the People's Court and People's Procuratorate. If a defense lawyer holds a lawyer's practicing certificate, a law firm certificate, a power of attorney, or a legal aid letter and requests to meet with a criminal suspect or defendant in custody, the detention center shall arrange the meeting in a timely manner, no later than 48 hours. Article 34 of the Criminal Procedure Law: A criminal suspect has the right to entrust a defender from the first day of interrogation or compulsory measures taken by the investigation agency. During the investigation, only lawyers can be entrusted as defenders. The defendant has the right to entrust a defender at any time. When interrogating a criminal suspect or taking compulsory measures against him for the first time, the investigative agency shall inform him of the right to entrust a defender. The People's Procuratorate shall, within three days from the date of receipt of case materials transferred for review and prosecution, inform the criminal suspect of the right to entrust a defender. The People's Court shall, within three days from the date of accepting the case, notify the defendant of the right to entrust a defender. If criminal suspects or defendants request to entrust a defender while in custody, the people's court, people's procuratorate and public security organs shall promptly convey the request. If a criminal suspect or defendant is in custody, his or her guardian or close relative may also entrust a defender. After accepting the entrustment of a criminal suspect or defendant, the defender shall promptly notify the case handling agency.