Laws are created and passed by civilian legislative bodies to include: (a) the stated statute, (b) the elements of a crime, (c) criminal procedures, and (d) prescribed punishment if found guilty. Moreover, appropriately these become the duty of the District Attorney, Judge, and Jury. Civilians make the law, not the police! Police are created to enforce the law. Citizens are expected to adhere to the law. A broader picture often lost in the discussion as some feel any behavior, any attitude, any disdain for society is acceptable. Not so!
Lumb, Richard C., "A Question of Police Role?" (2016). Criminal Justice Faculty Publications. 10.