I am not a cop. But I know cops, in my family, as friends etc.
If MTPD is a cop, he sure does not talk like any LEO I ever knew... Not saying he is or isn't, but no LEO I ever knew would say things like:
"In my day, dangerous armed felons were authorized targets and we didn't care if they lived or died. If they were lucky, we gave them a split-second to surrender. If they surrendered, fine. If they didn't, we dropped them."
Even the "old school" cops I know, long retired, do not use language like that.