Sergeant Klein raises concerns over illegal surveillance during San Francisco concerts

The San Francisco government meeting on August 18, 2025, featured a significant address by Sergeant Chris Ward Klein of the United States Marine Corps, who has been actively involved in discussions regarding public health and safety in the city. Klein reported on the completion of an investigation into the causes of overdoses and suicides in San Francisco, emphasizing the need for improvements in the city's approach to these issues.

Klein raised concerns about surveillance equipment installed at the main library and the Asian Art Museum, which he claimed is operational despite not being authorized for use outside of declared emergencies. He highlighted that this technology, which includes systems capable of intercepting cell phone signals, poses a risk not only to residents but also to visitors attending recent events in the city. Klein noted that the presence of such surveillance has led to public outcry and complaints directed at local law enforcement, including the sheriff and police chief.

He indicated that he has communicated these concerns to Sheriff Paul Miyamoto and Interim Chief Paul Yep, and plans to submit a detailed police report to the police commission, which will include names and further information regarding the surveillance practices. Klein expressed frustration that despite extensive research and efforts to address public health issues, the misuse of surveillance technology undermines these initiatives, potentially exacerbating the overdose crisis.

The meeting also included a timely presentation related to the topics discussed, reinforcing the importance of addressing the intersection of surveillance and public health. Klein concluded his remarks by expressing hope that this would be his final presentation on the matter, as he transitions the issue to the health and police commissions for further action.