The number of house break-ins spiked over the last two months across Sonoma County, amid historically low crime rates on a downward trend for the last 20 years.
Local police and the Sonoma County Sheriff's Office have responded by stepping up patrols, warning residents to lock windows and doors, and investigating people with prior habits of committing property crimes.
Detectives have tied at least some of the apparent burglary sprees to individuals or groups.
Burglaries Rise Across County
"Property crimes are up all over the Bay Area," Petaluma Police Lt. Tim Lyons said.
The trend appeared most strong in Petaluma, where the rate of residential break-ins has just about doubled since June, compared to the first five months of the year, according to figures provided by Petaluma police.
Officers have investigated 18 residential burglaries between June 1 and July 24, Lyons said. Between January and the end of May, they took 28 reports.
In one case, a man ran out of a house as a resident came home, and in his flight a baseball cap flew off his head, leaving behind a clue for detectives, Lyons said.
On another day, a Petaluma woman returned to her Draco Drive home after work and was confronted by a woman she didn't know in her house.
"As she put the key in the lock, she heard the deadbolt unlatch," Lyons said. "A stranger opened the door and said, 'Hi, who are you?'"
The stranger ran, and though the resident followed her in a car, she got away.