Korean authorities plan to question Korean American professor Morse Tan this week over allegations of defamation involving President Lee Jae Myung, according to sources. The Seoul Metropolitan Police Agency will question Tan at 10 a.m. on Wednesday. Tan, who is affiliated with Liberty University in the United States, is accused of falsely claiming that Lee was involved in a murder when he was a teenager. Police allegations also include Tan’s assertion that Lee was sent to a juvenile detention center for the crime. The claims were reportedly made by Tan during a press conference in the United States last year. This is expected to be Tan’s first appearance for police questioning. Police previously sought to restrict his travel after he did not comply with summonses. The Justice Ministry accepted the request and imposed an exit ban, preventing him from leaving the country until next Tuesday. Tan’s attempt to suspend the exit ban was rejected by a court, and an appeal is currently under way. Tan’s associates plan to hold a press conference in southern Seoul on Wednesday evening to state their position regarding the investigation.