Answer:
Most agree that the organizational culture of a police department affects the behavior of the officers. Thus, the establishment of a professional, moral, ethical culture in a police organization can control, prevent, and punish misconduct and corruption.
Answer:
Those circumstances that would cause a reasonable person to believe that entry (or other relevant prompt action) was necessary to prevent physical harm to the officers or other persons, the destruction of relevant evidence, the escape of a suspect, or some other consequence improperly frustrating legitimate law
hope it helps you
I believe it is left to Congress to decide