Most municipalities provide patrol officers with rifles now. That said rank/file patrol offciers are notoriously bad shots. SOP is for them to contain and call SWAT. Think if all the extra tax $ needed to equip and train for the scenario you suggest. Its just not necessary. Policing like many other jobs is dangerous. If youre not OK with that find another job.
That said rank/file patrol offciers are notoriously bad shots.
They need to become excellent shots. Their lives and the lives of the public depend on it. The problem with a SWAT team is the time it takes to get to the homicidal moron they have to deal with.