Guns are shown to be highly effective at detering crime and protecting the gun owner. Police officers often use guns to enforce the law, except in some countries where the police are not armed. It is debatable whether unarmed police can properly protect citizens from gun-wielding criminals, as they must wait for the arrival of specialist firearms officers before being able to act. | Guns are shown to be highly effective at detering crime and protecting the gun owner. Police officers often use guns to enforce the law, except in some countries where the police are not armed. It is debatable whether unarmed police can properly protect citizens from gun-wielding criminals, as they must wait for the arrival of specialist firearms officers before being able to act. |