The Commission for Discipline Inspection and Supervision can call up the criminal's short message records for several years.

The Commission for Discipline Inspection and Supervision can check the contents of short messages within 6 months. The Supervision Bureau of the Commission for Discipline Inspection can find short messages, but can't check them casually. According to the law, the freedom and privacy of communication of China people and citizens are protected by law. Except for the needs of national security or criminal investigation, public security organs and procuratorial organs shall inspect communications in accordance with the procedures prescribed by law.