If everyone were armed, people would come to respect each other. This respect would lead to friendship and camaraderie among them. The whole nation would become a group that was like a peaceful military, not controlled by the government, but active among the populace. Common sense, common law.
Crime would disappear, because the people wouldn't stand for it. No police department would be effective for anything other than criminal investigation. Cops wouldn't need guns, themselves. Why? They would be protected by the people to do their jobs of investigation - finding hidden criminals.
Cops are simply trained and armed people. Train and arm the rest of the people, and we won't need cops.
