Thief walks off with SF home’s surveillance system

The campus of West Valley College was reportedly evacuated due to a bomb threat Tuesday. The campus of West Valley College was reportedly evacuated due to a bomb threat Tuesday. Photo: Jacom Stephens, Getty Image Photo: Jacom Stephens, Getty Image Image 1 of / 1 Caption Close Thief walks off with SF home’s surveillance system 1 / 1 Back to Gallery

While they’re usually meant to deter crime, a surveillance system attracted a burglar who swiped it from a San Franciso home Thursday evening, police said.

A surveillance system was stolen from a residence in the 1100 block of Taylor Street after simply walking through a garage door that was left wide open, police said.

The 59-year-old homeowner’s son left the garage door open before going upstairs and when they returned, a computer tablet, charging wires, calculator and the home’s surveillance system were stolen, police said.

Hamed Aleaziz is a San Francisco Chronicle staff writer. Email: haleaziz@sfchronicle.com Twitter: @haleaziz