Indeed, some people have said that a really well-trained English longbowman from the 1300s was probably more dangerous than a soldier with a firearm right up to Napoleonic times - it was just so difficult to get hold of trained longbowmen and maintain a standing army of them.
I seem to recall from somewhere that there was a proposal post-battle of Waterloo that the British Army should be re-equiped with longbows... obviously didnt get anywhere!
I grew up in a 'British' city where a huge section of the adult populace have firearms either legally or illegally, where for the majority there was no official police force, merely a police force acting as an army of occupation, and still the crime rate and the murder rate were much lower than the average for the isles after you take politics out of the equation.
And if you take domestic violence and drugs and burglary out of the equation the crime and murder rates are even lower.... But that dosnt change the fact that crime and murder rates in Northern Ireland (I assume thats where you are talking about?) are (or at least were - the media at any rate gives the impresion that things are calmer nowadays) actually very high....