Where I am we have many levels of public safety enforcement; I've heard that in the USA there's a lot less variety in policing? Ie, bylaws are enforced by arme

Where I am we have many levels of public safety enforcement; I've heard that in the USA there's a lot less variety in policing? Ie, bylaws are enforced by armed and armoured officers who have full power to arrest. Is that true? It seems to me that dividing the forces would help to break their unified defensive behaviour.