@orolhl These are memorial or souvenir accessories issued by their police units… Just simply put through buttonholes… In addition, I believe the same design appears on some prefectural police uniforms.
I received a chest rig made for Uganda police🇺🇬recently which made me complete another impression since I've already bought Uganda police's field service uniform long ago. Urban DPM camouflage is rare I guess. Don't mind the AK prop…