Sohn was accused of punching the journalist in the face several times during a dinner meeting in Seoul in January.
The journalist, identified only by his surname, Kim, insisted that Sohn offered him a job at JTBC, then assaulted him after he rejected the offer. Kim said he was reporting on a car accident in which Sohn was involved a few years ago.
To undergo the police questioning, Sohn arrived at a police station in western Seoul at 7:40 a.m. for his first police questioning since the scandal arose in early January.
The JTBC chief has denied the allegation against him. He has filed a charge accusing Kim of extortion. (Yonhap)