Chinese police have been required to review cases to ensure they are enforcing laws properly and to prevent and reduce the number of mistakes they make as they perform their duties, an official from the Ministry of Public Security said.
"Police officers should strictly regulate their behavior to improve the quality of case handling and uphold justice," ministry spokesman Zhang Ming told a news conference on Friday.
According to Zhang, the ministry has strengthened supervision of law enforcement and set up a case review system to uncover mistakes officers make.
He said that police officers should always take responsibility for the quality of their case handling and should be held accountable for their errors.
Zhang also called on public security departments to improve their record systems to keep track of their casework and be willing to embrace supervision in all aspects.
Data provided by the ministry showed that 1.9 million police officers nationwide have obtained basic law enforcement qualifications, and 60,000 are highly qualified.