About the management process of the armed police force on guard duty

I am not an armed police officer, I am an active soldier. I from the Beisi Guard Camp can answer your question. After two hours, the guard was changed. When the sentry took over the guard, he said: Comrade squad leader, I am here to take over the guard. Please... Then he led the squad leader to say "changing of the guard"...gun inspection...three rounds of air burst ammunition and five rounds of live ammunition...the gun inspection was completed. …. At least once in the second half of the night during the inspection. During the post inspection, check the sentry's password and presence status. For example, if the password is "keep", the sentry who discovers that he is checking the post takes the initiative to ask: "Password". The person who is checking the post: "Keep the password, return the order?" Sentinel: Return the order to stay. Passwords are retained. It's very simple, I can't say too many leaks!