Concept art! I realized that I haven't really shown some of the robots that are being used in everyday life in the Metal Breakdown universe. Robots are fairly commonplace, and carry out tasks like security, trash, hazardous waste, bus driving, policing, etc.
So this is the policing model: SC-003, commissioned by Sigma City (Finally got a name for the damn town!) and created by Stone Corp.
Since none of these robots are sentient, the policing units are limited to detaining criminals while a human police officer is present, and minor retaliation to violence with a club and/or taser. Police units cannot arrest suspects, since they are not citizens nor police officers and cannot read criminals their Miranda Rights. However, they can hold suspects until a police officer does arrive.