The officer in D.C. quickly pulled up additional camera angles from around Pelosi’s home and began to backtrack, watching recordings from the minutes before San Francisco police arrived. There, on camera, was a man with a hammer, breaking a glass panel and entering the speaker’s home, according to three people familiar with how Capitol Police learned of the break-in and who have been briefed on or viewed the video themselves.
On Friday, the Capitol Police never received an alert from the home security company, that person added. It was unclear if the system was armed at the time of the break-in.
Officials with the San Francisco Police Department repeatedly declined to comment on whether there was an alarm system at the house and if the department received an alert about the break-in besides the 911 call.

The 911 call and the struggle inside the home that followed have led to charges of attempted homicide of the speaker’s husband, and attempted kidnapping of the speaker, who is second in line to the presidency. The incident has also put a spotlight on the immensity — and perhaps the impossibility — of law enforcement’s task to protect the 535 members of Congress at a time of unprecedented numbers of threats against them.
The Capitol Police first installed cameras around Pelosi’s home more than eight years ago; she has an around-the-clock security detail; and for many months after the attacks of Jan. 6, 2021, a San Francisco police cruiser sat outside her home day and night. But hours after Pelosi left San Francisco last week and returned to D.C., much of the security left with her, and officers in Washington stopped continuously monitoring video feeds outside her house.
Lots of yellow crime scene tape from the SFPD as questions go unanswered
Since Friday, neighbors said, at least three San Francisco police squad cars have been positioned outside the residence, along with unmarked black SUVs and plain-clothed security officers — often signals that the speaker is at home.
Pelosi’s house is also protected by a private security system, two people said. When tripped, that alarm is supposed to notify San Francisco police and, secondarily, the Capitol police, one of the added.