Prosecution’s Star Witness Challenged by Defense

Witness credibility looms over 31^st August verdict as defense claims prosecution case rests on unreliable testimony from its star witness

As South Korea awaits a closely watched court ruling at the end of August, lawyers for Family Federation President Hak Ja Han (한학자) have launched a detailed attack on the credibility of the prosecution’s most important witness. They argue that the testimony of former Federation executive Yoon Yeong-ho (윤영호) is contradicted by documents, access records, diaries, and the timeline of events, making it too unreliable to support a conviction.

See also How Reliable Is the Prosecution’s Key Witness?

See also Yoon’s Changing Accounts Challenged by Defense

See also: Defense Mounts Broad Challenge to State’s Case

See also Yoon’s Independence Put at Center of Case

See also Religious Freedom in S Korea: European Concern

See also Korea Warned at Crossroads on Religious Freedom

The case has attracted national attention not only because it involves the leader of the Family Federation for World Peace and Unification – often referred to in South Korea as Unificationism (통일교) – but also because it forms part of a much broader investigation into allegations of improper political influence during the administration of former President Yoon Suk-yeol (윤석열).

See also No Proof Mother Han Linked to Political Funding

Unlike ordinary criminal cases, this investigation is being conducted by a special prosecutor. In South Korea, a special prosecutor is appointed to investigate politically sensitive matters where the regular prosecution service may be perceived as having conflicts of interest or insufficient independence. The current investigation, headed by Special Prosecutor Min Joong-ki (민중기), has focused heavily on allegations involving former First Lady Kim Keon-hee (김건희) and people accused of seeking political favors through gifts or other benefits.

Prosecutors allege that senior Family Federation officials attempted to influence government figures by providing expensive luxury goods and illegal political donations. Hak Ja Han (한학자) – also called Mother Han – herself denies wrongdoing, and her lawyers argue that the investigation has gone beyond its lawful scope while relying on unreliable evidence. The Seoul Central District Court is expected to deliver its first-instance verdict on 31^st August.

Writing in the conservative daily Munhwa Ilbo (문화일보) on 5^th August, reporter Hwang Hye-jin (황혜진) summarizes the defense’s final arguments before the court reaches its decision.

The article notes that much of the prosecution’s case rests on the testimony of Yoon Yeong-ho (윤영호), the former Director-General of the Family Federation‘s World Headquarters. According to the special prosecutor, Yoon acted under Mother Han‘s instructions when he allegedly delivered an illegal political contribution of 100 million won (in 2022 ca. US$ 77,000) to former People Power Party lawmaker Kweon Seong-dong (권성동). Prosecutors also allege that luxury gifts were presented to former First Lady Kim Keon-hee (김건희)  in connection with requests concerning matters affecting the Family Federation.

Because Yoon has provided detailed testimony about these events, the court’s assessment of whether his statements are credible may prove decisive in determining the outcome of the trial.

Hak Ja Han‘s legal team, however, devoted much of its closing arguments to attacking that credibility. Rather than disputing only individual allegations, the defense argued that the entire prosecution case is built upon testimony that repeatedly conflicts with objective evidence.

The defense first challenged the legality of the investigation itself. According to Mother Han‘s lawyers, the special prosecutor expanded the inquiry beyond its legally authorized mandate by investigating what they describe as conduct that, if criminal at all, involved Yoon personally rather than Hak Ja Han herself. They also argued that nearly half of the approximately 3,400 items of evidence submitted by prosecutors were obtained unlawfully and therefore should not be admitted by the court.

The strongest criticism, however, was directed at Yoon‘s testimony.

According to the defense, Yoon claimed that after delivering 100 million won (in 2022 ca. US$ 77,000) to former lawmaker Kweon in January 2022, he reported the transaction to Hak Ja Han. Prosecutors presented a written report as evidence supporting that account. The defense responded that the document’s actual creation date was January 2023 rather than January 2022. They argued that this discrepancy undermines the prosecution’s narrative and suggests investigators shaped their questioning to fit a predetermined conclusion.

According to the Munhwa Ilbo article, Mother Han‘s lawyers further maintained that Yoon repeatedly changed his story during the investigation.

One disputed episode concerns Yoon‘s claim that former lawmaker Kweon asked him to convey a message of gratitude to Mother Han shortly after the presidential election. The defense argued that neither Yoon‘s personal diary nor his special reports contain any mention of such a meeting. Moreover, they said that records showing when Yoon entered the Cheon Jeong Temple – the Family Federation‘s headquarters – and the wake-up times recorded in his diary contradict his claim that he met Mother Han between seven and eight o’clock that morning.

The lawyers also challenged Yoon‘s testimony regarding a planned visit to then President-elect Yoon Suk-yeol. According to the defense, Yoon Yeong-ho had previously acknowledged that he had not informed Mother Han in advance about the meeting and only told her afterward, when she reportedly expressed surprise. That earlier statement, they argued, directly contradicts his later testimony that she had been informed beforehand.

Another major point of disagreement involves luxury gifts allegedly intended for former First Lady Kim Keon-hee (김건희).

The defense argued that Yoon Yeong-ho‘s description of how a Chanel handbag was selected changed several times during the investigation. During his first questioning by prosecutors, he reportedly said that Mother Han herself chose the handbag. During a later interview, he instead said that he and another associate selected it before presenting the idea to her. Still later, during questioning by the special prosecutor, he claimed that he had even reported the precise model of handbag to Mother Han. According to the defense, these changing accounts cast doubt on his reliability.

See also No Proof Mother Han Linked to Political Funding

Hak Ja Han‘s lawyers also disputed Yoon‘s testimony concerning a Graff necklace. Yoon claimed that he purchased the necklace in July 2022 on Mother Han‘s instructions. The defense responded that public controversy surrounding the necklace did not emerge until the end of August 2022. Because of that chronology, they argued that his account could not be accurate.

In concluding their arguments, Mother Han‘s legal team emphasized that she served as the movement‘s religious leader rather than its day-to-day administrator. They argued that administrative affairs and financial decisions were managed by Yoon himself and urged the court to allow the 83-year-old defendant to continue defending herself while remaining out of detention.

Munhwa Ilbo presents the defense’s arguments in considerable detail, highlighting the numerous inconsistencies that Mother Han‘s lawyers say undermine the prosecution’s principal witness. Whether the judges ultimately find those inconsistencies significant enough to reject Yoon Yeong-ho‘s testimony – or conclude that it remains credible despite the defense’s objections – will likely be one of the central questions when the Seoul Central District Court announces its verdict on 31^st August.

See also How Reliable Is the Prosecution’s Key Witness?

See also Yoon’s Changing Accounts Challenged by Defense

See also: Defense Mounts Broad Challenge to State’s Case

See also Yoon’s Independence Put at Center of Case

See also Religious Freedom in S Korea: European Concern

See also Korea Warned at Crossroads on Religious Freedom

Text: Knut Holdhus, editor

Featured image above: Court documents versus witness testimony. Illustration: ChatGPT, 6^th August 2026.

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