Legal analysis: The three themes of public security education rectification are self-revolution, Yan 'an rectification and theme education.

Legal basis: Provisions on Procedures for Handling Criminal Cases by Public Security Organs Article 2 The tasks of public security organs in criminal proceedings are to accurately and timely identify criminal facts, correctly apply laws, punish criminals, protect innocent people from criminal investigation, educate citizens to consciously abide by laws, actively fight against criminal acts, safeguard the socialist legal system, respect and protect human rights, protect citizens' personal rights, property rights, democratic rights and other rights, and ensure the smooth progress of socialist construction.