The first "job" of any LEO is their oath which is to protect and defend the Constitution. A job that a very large majority of them are not doing.
I joined the Navy in 1969. I doubt if more than 5 out of the 80 men in my boot camp company were “experts” about the constitution. And I’m not going to count myself among those 5.
Before that I knew a lot of cops when I was a teenager. And I KNOW none of them knew anything about the constitution. And it’s only gotten worse since.