Bangkok: The Department of Special Investigation (DSI) is actively coordinating with the search team concerning the recent collapse of the Office of the Auditor General building. A key directive is to refrain from demolishing any discovered elevator shafts as they may hold critical evidence.
According to Thai News Agency, Pol. Lt. Col. Woranan Srilam, the spokesperson for the DSI, provided updates on the investigation. The DSI has reviewed documents seized from the State Audit Office, totaling 121 boxes. These documents have been categorized into three parts: joint venture responsibilities relating to construction, equipment, and materials; design revisions; and documents from the State Audit Office as the site owner. The focus is on the construction process, from design to material procurement and construction operations. Unrelated documents will be returned to their respective owners.
The next phase involves a detailed examination of the seized documents and summoning document owners for clarification. Witnesses present during the incident may also be called to provide further testimony. The investigation remains focused on collaborating with the Department of Public Works and Town and Country Planning, along with Bang Sue Police Station investigators, to determine whether substandard materials or construction errors led to the building’s collapse. The DSI has instructed that if an elevator shaft is found, it should remain intact to allow for comprehensive evidence collection.
Significant progress has been made in the interrogation of engineers, with the final round involving ten engineers scheduled for today. The investigation into forged engineer signatures is expected to conclude within 30 days. Additionally, the Consumer Protection Division will consult with the Department of Industrial Works regarding the potential connection between red dust and the steel used in the building’s construction.