The DSI has received photos taken when Tangmo's body was found, which have never appeared in media or case files before. These images aim to clarify the circumstances of her death. They revealed additional characters but cannot disclose details at this time.
At 11:00 a.m. on 18 Mar 2026 GMT+7 at the Institute of Forensic Science, Ministry of Justice, reporters observed Pol. Lt. Col. Natthaphon Disayatham, Director of the Natural Resources and Environment Case Division; Mr. Kriangsak Suwansorn, Special Expertise Investigator and Assistant Secretary of the Investigation Panel; and other special investigation officers arriving to receive key photographic evidence showing the discovery of actress Pattharathida Patcharawirapong (known as Tangmo), who fell from a speedboat and died in the middle of the Chao Phraya River.
In this case, Pol. Lt. Col. Natthaphon Disayatham, Director of the Natural Resources and Environment Case Division and head of Investigation Panel 20/2568 investigating the death of actress Pattharathida Patcharawirapong, personally received the photographs.
Pol. Lt. Col. Natthaphon Disayatham stated that the investigation into Tangmo’s case is now in its final stages. By compiling evidence from two DSI investigations and five court judgments—including two courts in Nonthaburi province and three cases filed by Mr. Atchariya—they found some conflicting testimonies. Therefore, some evidence has been sent to the Institute of Forensic Science for further examination to clarify facts. This includes photos obtained from witnesses and additional evidence requested from the Institute, which has preserved these images since the initial incident.
The Institute of Forensic Science will compile and forward all evidence to the DSI for further procedures. The schedule for this will be arranged later. The Institute has cooperated fully in providing factual information. The investigative team has already summarized much of the case file and continues to finalize additional details.
Mr. Kriangsak Suwansorn, Special Expertise Investigator and Assistant Secretary of the Investigation Panel, said that the DSI has integrated testimonies and all types of evidence from seven related cases, emphasizing both scientific and witness evidence. They have carefully checked for consistency since witnesses may have given differing accounts in various cases or courts. All information is being cross-checked individually. Currently, the case file has progressed significantly and exceeds 300 pages.
The case file is being prepared with particular thoroughness due to public interest and to ensure readiness for any retrospective reviews or investigations by other agencies in the future. The newly received evidence was provided by Tangmo’s mother and lawyer Krisana, collected over more than a year. This includes photographs and raw data, some showing the initial discovery of Tangmo’s body, which have never appeared in media or previous case files before. This information came from a foundation involved in assisting with the recovery and examination at the incident scene. These individuals have never been called as witnesses in court.
Regarding the significance of the forensic evidence, Pol. Lt. Col. Natthaphon said the new evidence aligns with some forensic findings already held by the DSI. This new information will help answer questions and deepen the investigation based on complaints. A case summary or progress report is expected in early April but may be delayed because the evidence requires detailed examination to ensure the case file is as solid as possible.
When asked whether there are additional characters, surprises, or further prosecutions, Pol. Lt. Col. Natthaphon acknowledged that new characters have emerged based on the testimonies and evidence provided by Tangmo’s mother. However, details cannot be disclosed to maintain confidentiality in the investigation.
Asked if one of the new characters is already a defendant, Pol. Lt. Col. Natthaphon said the person was not on the boat but further details cannot be revealed as it might affect others, so this information remains confidential.
When asked if the suspect is someone previously known to the media, Pol. Lt. Col. Natthaphon said that cannot be disclosed yet because the investigation and evidence gathering are ongoing. The case is not yet classified as a special case but remains under investigation to compile the file and determine the next steps. The DSI will provide updates to the media as progress occurs. The investigation may follow several directions, so the final investigative panel’s decision will determine the path forward.
Pol. Lt. Col. Natthaphon added that they expect to receive all additional evidence by April, including results from the Institute of Forensic Science and witnesses from Tangmo’s mother and lawyer. Once all evidence is complete, they can finalize conclusions. So far, the investigation has been useful for addressing the complaints. However, the final investigation results are pending. When the last evidence is received, the case can be closed and submitted for committee review. The final important documents will come from this agency along with witnesses presented by the mother and lawyer, expected in early April. Additionally, the case requires a detailed timeline. If the accused denies involvement, all testimonies must be compiled and compared, especially when accounts of the same event differ. Since witnesses may give inconsistent information, thorough verification is needed to reach clear conclusions.