To add to the fujing thing:
Fujing 辅警 are "Auxilary police", basically a glorified welfare program based of the French “gendarme adjoint volontaire”. They can be identified by the navy colored clothes, shitty patches falling off, lack of physical standards, and general net-negative effect to society. At most, they are equipped with anti-violence forks. The Teqin get a specialized variant of said anti-personel weapon with a stungun/cattle prod to shock people with. They exist to harass people, conduct endless ID checks, and be meatshields for cops listed below them.

Xunjing 巡警 are "Patrol cops". They exist to do the usual traffic cop functions. They don't get a gun usually, only a baton/stunbaton. They exist to harass people for bullshit, write parking tickets for kickbacks, and are meatshields for the others listed below.
Teqin 特勤 are "SWAT". They exist to look somewhat useful and actually hold back people who go out with knives or weapons with specialized "anti violence devices" (see pic of the fork and imagine adding a cattle prod for stunning people). They are expected not to use firearms in restraining people, hence are taught hand to hand combat, and they ride large vans to mog you in large groups of 5-10+. They are expected to be meatshields for the guys below.
Wujing 武警 are "Armed Police". They're technically not part of the MPS (Ministry of Public Security), they're part of the military and report to the military. As such, the license plate is white with the red prefix WJ. They can be found in three forms:
1) Patrol form (meatshield duo with handgun),
2) Doorgreeter (solo/duo meatshield)
3),Combat fatigues ( meatshields w/ automatik raifu and an officer) You'll see them in green/white military vans and Gwagons (Chinese variant).The third person in variant three holds the ammunition and usually is an officer.
You'll never see these guys solo.


If we take a look at the video, you can briefly see the police at 0:18. Notice the belt buckle and color. It's dark navy/black fatigues with a bright shinny silver buckle. Only Aux police (or the occasional patrol cops serving warrants on nonviolent offenders) wear that setup.
