The investigation involving Thomas Markle has opened a troubling new chapter for the Markle family, with questions now extending beyond the allegations themselves to whether authorities will pursue criminal charges, whether a mysterious letter sent to British police years ago can be traced to its author, and whether Meghan Markle, her mother Doria Ragland or Thomas’s other children could eventually be drawn into the investigation.

For Meghan, the situation is particularly painful because she has been estranged from her father for years, and the Duchess of Sussex has now publicly explained why she believes keeping him away from Prince Archie and Princess Lilibet was necessary. But with authorities in the Philippines reportedly investigating allegations involving child sexual abuse material, the family’s long-running estrangement has suddenly become part of a much larger story, one whose eventual outcome remains uncertain.

What Happens Next for Thomas Markle?

The first major question is whether the investigation will lead to criminal charges.

Reports have alleged that Thomas’s son, Thomas Markle Jr., provided information to Philippine authorities after allegedly discovering disturbing material among his father’s belongings at a former residence in Cebu. These remain allegations, and Thomas Markle has denied them, describing the accusations as “sick lies” and insisting that he could never do what he is accused of doing.

Investigators will need to establish what material was allegedly discovered on the phone and in the boxes containing private family photos.

Questions such as whether it can be authenticated, who possessed or controlled it, and whether the available evidence supports an offense under applicable law will be raised. If sufficient evidence emerges, prosecutors could consider charges, but an investigation does not establish guilt, and there has been no confirmed conviction.

The FBI has also said it is aware of the allegations and will provide support to Philippine authorities as appropriate, while examining any related allegations of violations of US federal law. That leaves open the possibility of cooperation between authorities, although it does not mean that a separate American prosecution or an arrest has been confirmed.

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Could Meghan Markle Be Forced to Testify?

Meghan’s name is now inevitably part of the public discussion, but that does not mean she will automatically be required to appear in court.

The Duchess has said she was made aware of disturbing allegations concerning her father years ago and explained that she had been assured the matter was being investigated. In her statement, she said she was “deeply distressed” by the news and added that her thoughts were with “any children who may have been harmed.”

She also addressed years of criticism over her estrangement from Thomas, explaining that her decision to keep her father away from her two young children, Prince Archie and Princess Lilibet, made it clear she intended to protect them. “I hope it can now be understood,” she said, that the distance between them and her decision to prevent contact with Archie and Lilibet were for that reason.

Whether Meghan will be asked to provide a formal statement or give evidence would depend on what investigators need to establish. If she has relevant information about the earlier allegations, the letter or the communications she received, or the family member who provided the information, authorities could seek her cooperation. Whether she could legally be compelled to testify would depend on the jurisdiction, the proceedings and the applicable legal requirements.

For now, there is no confirmation that she has been ordered to testify.

Will Doria Ragland Be Drawn Into the Investigation?

Another question concerns Doria Ragland, Meghan’s mother and Thomas Markle’s former wife.

Although Doriaia Ragland and Thomas Markle Sr. have been divorced for 39 years, their past relationship may attract public curiosity and unfortunate scrutiny. But being married to Thomas in the past does not automatically make Doria a witness or require her to testify or provide a statement. Investigators need a specific reason to believe she has relevant information, such as knowledge of events connected to the allegations or communications that could help establish the facts.

If she has relevant evidence, authorities could approach her for an interview or statement, subject to the law. Whether she would be required to attend court is a separate question.

The same principle applies to Thomas’s other children. Family connections alone do not establish knowledge of wrongdoing, and investigators must distinguish between people who may have relevant evidence and relatives who have no direct information about the matter.

The Mystery of the 2019 Letter

Perhaps the most consequential new development concerns a letter sent to London’s Metropolitan Police in January 2019.

The Met has confirmed that it received a letter containing allegations of offending outside the United Kingdom, referred it to its Protection Command because of concerns relating to Meghan’s security, and then passed it to the Sussexes’ office. Crucially, the force said the allegations were not shared with other law-enforcement agencies, and it is reviewing its handling of the matter, including whether a referral to the police watchdog is necessary.

Meghan recalled that the letter was sent in 2018, but her spokesperson acknowledged that the Met’s records should be treated as authoritative regarding the date.

Who actually wrote the letter remains an important unanswered question. If investigators can obtain the original document, examine its provenance and establish how it was delivered, they may be able to identify its author or determine whether it contains information relevant to the current investigation. However, there is no confirmed public finding identifying the writer or establishing that the letter and the current allegations are connected in every detail.

The Met’s review also concerns its own handling of the letter; it should not be mistaken for confirmation that British police are investigating Thomas Markle.

For Meghan, Doria and the wider family, the next chapter will depend on evidence rather than speculation. Thomas has denied the allegations, and he remains entitled to the presumption of innocence. The questions now are whether investigators can substantiate the claims, whether any charges follow, and whether the people who received or knew about the earlier letter can help establish what happened.

Until authorities provide those answers, the outcome remains unknown — and no member of the family should be assumed to be a witness, a suspect or a participant simply because of their relationship to Thomas Markle.