How to punish threatening the police with a knife?

Threatening the police with a knife to give public security management punishment, if the circumstances are serious, constitutes a crime of obstructing official duties.

Fiftieth article of the Public Security Administration Punishment Law has one of the following acts, and it shall be given a warning or fined in 200 yuan; If the circumstances are serious, they shall be detained for not less than five days but not more than ten days, and may also be fined not more than 500 yuan: (1) refusing to implement the decisions and orders issued by the people's government according to law in an emergency; (two) hinder the staff of state organs to perform their duties according to law; (3) obstructing the passage of fire engines, ambulances, engineering rescue vehicles, police cars and other vehicles performing emergency tasks; (four) forcibly broke into the warning tape and the warning zone set up by the public security organs. Whoever obstructs the people's police from performing their duties according to law shall be given a heavier punishment.

Article 277 of China's Criminal Law stipulates the crime of obstruction of official duties, which refers to the act of obstructing state functionaries, deputies to the National People's Congress and Red Cross staff from performing their duties or duties according to law under certain conditions by means of violence or threat, or deliberately obstructing state security organs and public security organs from performing their national security tasks according to law by means other than violence or threat, resulting in serious consequences. The first paragraph stipulates that whoever obstructs a functionary of a state organ from performing his duties according to law by violence or threat shall be sentenced to fixed-term imprisonment of not more than three years, criminal detention, public surveillance or a fine.