amenity=police
might be iffy, butbuilding=kiosk
is correct. Tag:building=kiosk - OpenStreetMap Wiki
while there is some overlap I don’t think the description fits particularly well, and there is also a picture which gives a different impression.
For reference, here is an older thread about the same topic (I think) https://community.openstreetmap.org/t/guard-posts-and-police-cabinets/1962/1
For those traffic police booths/shelters I think we should have something specific, maybe even under the highway key.