After criminal detention or arrest, detainees still have the right to correspond. However, all incoming and outgoing letters must be checked by the police in the detention center. Therefore, the content of this letter is irrelevant to this case.
1. You can write a letter, but the content of the letter cannot mention the case, otherwise the suspect will not receive it.
2. It is suggested to entrust a professional lawyer to meet with the detention center as soon as possible, understand the basic situation of the case, collect favorable evidence materials or identify statutory or discretionary lighter or mitigated punishment circumstances, and strive for bail pending trial or probation or lighter or mitigated punishment.
The right to entrust a lawyer. Detention and arrest are compulsory measures, so the suspect has the right to entrust a lawyer.
The right to apply for changing compulsory measures. You can apply for a change in compulsory measures, whether it is detention or arrest. If a criminal suspect is arrested, the people's procuratorate shall still examine the necessity of detention after the criminal suspect and defendant are arrested. If it is not necessary to continue detention, it shall be suggested to release or change compulsory measures. The relevant authorities shall notify the people's procuratorate of the handling within ten days. Criminal suspects also have the right to apply for examination of the necessity of detention.
The right to demand the lifting of compulsory measures. The people's court, the people's procuratorate or the public security organ shall release the criminal suspect or defendant after the expiration of compulsory measures, obtain bail pending trial, place him under residential surveillance or change compulsory measures according to law. When the statutory time limit for the people's court, the people's procuratorate or the public security organ to take compulsory measures expires, the criminal suspect, the defendant and his legal representative, close relatives or defenders have the right to demand the cancellation of compulsory measures. Therefore, if there is an extended detention, you have the right to ask for the cancellation of compulsory measures.
The right to sue. When the people's procuratorate examines and approves the arrest, it finds that the investigation activities of the public security organ are illegal, and it shall notify the public security organ to make corrections, and the public security organ shall notify the people's procuratorate of the corrections.
Therefore, if a criminal suspect finds that the public security organ has violated the law, he has the right to sue the procuratorate.