….This custom is so thoroughly ingrained that, when the Pink Nazis loot the Vatican. the survivors refugee out to former Catholic girls’ school in Brownsville, and a new Pope (the former Cardinal Fulton J. Sheen) takes over from the assassinated Pius XII, he orders that everyone working for the Church (including priests and nuns) comply with the letter and spirit of the law of the nation of which they are presently guests. That’s why you see a .22 Colt Woodsman — ” … only a Popegun, sir … ” — on the poker table at Pius XIII’s elbow.
….The only standing groups resembling a military are the Texas Rangers (of which there are damned few — “One riot, one Ranger”), and the Texas Air Militia, which only has half a dozen planes.
….With a thoroughly armed society (of course you can get out of gun-toting if you apply for a license _not_ to carry a gun and go through fingerprinting and psychiatric evaluation) who needs an army or the cops?
L. Neil Smith
"Taxes in the Federated State of Texas"

Who would need cops indeed, if every citizen carried a firearm? We don't need detectives or investigators to track down criminals, we can stand around holding our firearms! Ha, take that, criminal! You may have stolen the contents of my house/raped my wife/abducted my children, but I can carry a firearm! Ha!
Hey, Dumbo, even in our society the vast majority of detectives/investigators are not government-employed police. They're private investigators, mostly hired by insurance companies. No doubt that in a culture without domestic occupation armies such as we endure, private investigators can ferret-out burglars, rapists (those who survive the attempted rape of armed women, anyway), and kidnappers.