Police Station

A facility for maintaining local security. It apprehends criminals and rehabilitates them.
Overview
A Police Station is a building that automatically handles arrests when crime occurs, as long as it is staffed by an A_Ratizen. It also helps suppress rioters when an uprising breaks out, making it a major part of keeping a settlement stable.
However, it does not transport injured people after a riot is put down, so the player must carry them manually or build a 

Multiple Police Stations can be built, but in most cases one is enough.
Official description
A facility for maintaining local security. It apprehends criminals and rehabilitates them.