Concerns over violent crimes are growing.

Here are some response methods you can use to protect yourself.

One of the methods is the "Knock Knock 112 Report Method."

In an emergency situation, you call 112.

Then, without speaking, you press any button twice to signal that you are in a dangerous situation.

The police will send a "Visible 112" link that allows them to check your location and the situation at the scene.

In addition, there is a method of checking taxi license plates.

Commercial taxi license plates use one of four specific Korean characters: 아, 바, 사, or 자.

If a different character is written on the plate, it may be an illegally operated vehicle, so it is best not to board it.