If you mean do they patrol in a car alone answering 911 calls,then no.A sector or any patrol car that has a primary job of responding to 911 calls must have 2 officers.Highway patrol are aloud to go solo because they are mostly responding to 911 calls regarding accidents,and traffic matters,and they are qualified to have a shotgun. read more
All cops have partners, at least for a while. What happens is that rookie officers need a senior officer to be with them all the time. Once the officers become lieutenants, investigators, etc. then they could be mostly by themselves. read more