Can a head injury of 3 cm be criminally detained?

Whether the head is broken by 3 cm can be criminally detained depends on the injury identification. Those who are slightly injured or above commit the crime of criminal intentional injury, need criminal detention and bear criminal responsibility. Minor injuries and below are public security penalties.

Beating and hurting others violates China's public security punishment law, causing minor injuries or more, which belongs to the crime of intentional injury in criminal law and needs to be punished.

According to Article 43 of the Law of People's Republic of China (PRC) on Public Security Punishment, those who beat others or intentionally hurt others' bodies shall be detained for more than five days and less than ten days and fined; If the circumstances are minor, they shall be detained for not more than five days or fined not more than five hundred yuan. Under any of the following circumstances, the offender shall be detained for more than 10 and less than 15, and fined for more than 500 yuan 1000 yuan:

1, gang up to hit people and hurt others;

2. Beating or injuring disabled people, pregnant women, people under the age of 14 or people over 60;

3. Beat or hurt others many times or beat or hurt many people at one time ".

Article 234 of the Criminal Law stipulates that whoever intentionally harms another person's body shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention or public surveillance.