The baton is an old weapon that has remained more or less the same since its inception in pre-historic times although a hidden blade has been added in it in the more recent times. One of the main reasons behind the concealed of blades inside batons is that they provide lethal stealth. Since a typical baton is made up of wood hence it is not considered as the weapon of choice for quickly dispatching the enemy. But when the blade is hidden inside of the police batons it becomes all assassins weapon of choice.
In spite of the fact that most of the Orient had been ruled by a warrior class during the late 1800s, the public demonstration of swords had been frowned upon and had been much politicized. In the same era Japan, Korea and also China had considered the ban of public display of the baton.
Meaning that carrying a hidden weapon such as the likes of a 33 Inch Twin Blade Baton Short Sword had been much famous amongst those who wanted a weapon on hand.