The police in America are very much not trained for anything.
Police in some countries are required to obtain at least a four year degree and attend a two year police academy before they can start.
Contrast that to the city I used to live in where they had a written test to be a police officer. A written test where they had to reduce the math competency portion from a 4th grade math level to a 1st grade math level due to too many candidates failing the test. Other than that, the only other requirement is a two year degree that is very generic