ATHERTON

Theft: A thief stole a locked bike, a bike helmet and the lock from a bike rack at Menlo-Atherton High School at 555 Middlefield Road. Estimated loss: $570. May 13.

PORTOLA VALLEY

Theft: Someone stole a sign and sign posts from the front yard of a home on Hillbrook Drive. May 7.

MENLO PARK

Commercial burglary: A thief pried open a door and broke into the commercial storage office of Hurley Construction on Haven Avenue and stole tools. The list of stolen items includes hand and power tools, a vacuum, a water dispenser and office supplies. Estimated loss: $13,000. May 18.

Auto burglaries:

• Someone smashed a window of a vehicle parked in the 500 block of El Camino Real and stole a backpack. Inside was a laptop, a nerve-stimulation device, headphones and prescription medicine. Estimated loss: $6,785. May 16.

• After shattering a rear window of a vehicle parked at Bedwell Bayfront Park on Marsh Road, a thief stole a purse containing a wallet and $20. Estimated loss: $370. May 18.

Thefts:

• Someone stole an electric scooter that was being recharged in a parking plaza in the 700 block of Santa Cruz Avenue. Estimated loss: $1,000.

• A thief stole two locked bicycles from the front porch of an apartment complex in the 1300 block of Willow Road. Estimated loss: $800. May 13.

• Someone stole a locked bike from beneath the stairs of an apartment on Coleman Place. Estimated loss: $150. May 16.

• Responding to a phone call claiming that someone the caller knew had "poured water on him and snatched (approximately $100) out of his hand," police found the alleged water-pourer, interviewed him, determined that he had no money in his possession and released him at the scene in the 700 block of Menlo Avenue. May 17.

• A patron of Cafe Borrone told police that someone had stolen her wallet from her purse while she was eating. May 17.

Stolen vehicle: A blue-and-white 2006 Suzuki GSXR motorcycle from the 1100 block of Henderson Avenue. May 15.