An article in the Boston Globe points out that the gun ban in England has had an interesting effect over the years.

The number of people robbed at gunpoint in London rose by 53 percent... Gun crime is just part of an increasingly lawless environment. Your chances of being mugged in London are now six times greater than in New York. England's rates of robbery and burglary are far higher than America's, and 53 percent of burglaries in England occur while occupants are at home, compared with 13 percent in the United States, where burglars admit to fearing armed homeowners more than the police.

England has not only disarmed their citizens, they have also gone so far as to punish them for defending themselves.

In 1994, an English homeowner, armed with a toy gun, managed to detain two burglars who had broken into his house, while he called the police. When the officers arrived they arrested the homeowner for using an imitation gun to put someone in fear. Parliament is now considering making imitation guns illegal.