The intricate details of the case definitely couldn't be discussed with Cano on the street; they could only return to the police station together.
The two police officers from earlier were still there. This is a reservation, and although the law and order aren't great, it's at least not as chaotic as the cities, so they don't need to patrol outside all the time, just staying on the main roads for a while at most.
In fact, for a reservation, this police station already has a relatively high ratio of residents to officers, as many reservation police forces only have a single-digit number of officers.
