Following that logic, now that he has a weapon you can shoot him.
I always saw that baton throw and thought it was stupid, glad to find it was Hollywood, and not real Training.
What strikes me in the old cop shows, is the lack of bullet proof vest.
Body armor for uniform police use did not come on the scene until the mid-1970's. The first generally successful offering was by Second Chance, basically two rectangular panels of multiple layers of Kevlar fabric with fabric straps and Velcro fasteners to keep the panels centered over the center of the chest and back. Generally effective against common handgun calibers, but could be defeated by some magnums. Even when the Second Chance vest stopped a bullet there would usually be massive bruising and frequently broken ribs or internal injuries.
Two things stick in my mind about the Second Chance vest. First, the darn things were incredibly hot to wear, causing constant perspiration. On a hot summer day I weighed myself at the beginning of the shift, and again after my shift, and I had lost over 4 lbs. Serious dehydration and heat stroke were real possibilities.
Second, there was no "carrier" to the vest. The Kevlar panels readily absorbed your perspiration all day, every day. After a few days body odor could become a real problem. I used scented talcum powder to help with that, but the vest had to be soaked overnight in soapy water, then rinsed at least twice, then hung to dry for a couple of days to have any hope of overcoming the odor problem.
By the mid-1980's newer vest designs were available that utilized a carrier vest with pockets to contain the Kevlar panels, and armor plates were incorporated to raise the performance (typically ceramic plates that fit into pockets on the outer surfaces of the vest carrier. The carrier could be washed and dried separately, and the Kevlar panels had a coating that allowed them to be wiped clean.
Improvements, but still nothing to overcome the extreme discomforts caused by overheating of the body by containing all the body heat right around the central core of the body.
Another small problem was the added bulk of the body armor changed the user's uniform shirt size quite a bit. Had to buy new uniform shirts to accommodate the bulk.
Police body armor was not generally issued, but was an individual officer purchase decision. Cost of the vest was equivalent to the cost of a new handgun, or roughly 1/4 to 1/3 of a month's salary, so it was not an easy choice to make back in the days of skinny police paychecks!
Also, some jurisdictions hesitated to require police body armor because of workers' compensation rules. Essentially, if the department required or issued body armor and an officer was injured while not wearing the armor the workers' compensation insurance carrier could deny payment of any claims because the employee failed to comply with required safety measures.
Ah, the good old days!