Police are seeking to prevent Morse Tan, a professor at Liberty University and former U.S. ambassador-at-large for global criminal justice, from leaving Korea over an investigation into his alleged defamation of President Lee Jae Myung.

Police are pushing to impose a travel ban on Morse Tan, a Korean American professor accused of defaming President Lee Jae Myung, information obtain...

Since arriving in Korea last week, Morse Tan has hobnobbed with some of the country’s most prolific spreaders of stolen election conspiracy theories