”I know someone in the police”... A passenger called the police after being warned about making a phone call on a train (South Korea)

A video was released of a passenger who was talking loudly on the train and called the police after being restrained by station staff.
A video was released of a female passenger causing a commotion while protesting against station staff on a train. The passenger was talking loudly on a phone and when the station staff tried to stop her, she said, "Don't do that to me. I'm going to call the police.
"You can't stab me with your words," he said. The passenger also said he had studied law and that "the constitution of this country says you can stab someone with your words."
The passenger who called the police said, "We were on a train, and the station staff made the first threat. There is the same thing between threatening someone with words and stabbing them with a knife. If the station staff is guilty, they will be arrested if there is suspicion.
"They raised their voices at me and insulted me in a crowded place," he said. "It scares me that such an officer would be employed in my position. Please be a good police officer."
Regarding this, netizens commented, "What does it mean that the constitution says you can stab someone with words?" and "How much trouble has this caused to those around you?"
"I can understand it well even without watching it."