The officer simply won't understand such a question. They're neither trained nor bred to "understand" -- just follow. If anyone at the scene of slamming a 78-year-old man to the ground were to ask such a question, the "officer" would simply call for backup and "escalate" the "situation" -- a "situation" that wasn't his to begin with. And lose no sleep over the human cost or aftermath.
Too bad that what you say is true. There haven’t been very many worthy of the title officer is quite awhile.