Detectives discovered guns, heroin and about five pounds of methamphetamine in a Santa Rosa storage locker, authorities said Monday.

The locker was searched Friday during an investigation into Cesar Jimenez, 27, a Santa Rosa man arrested last week with a pound of methamphetamine hidden in his car's air bag space, Sonoma County sheriff's Sgt. Mike Raasch said.

Inside the locker, which contained personal property belonging to Jimenez, detectives found more crystal meth, four ounces of heroin and two guns — one which had been stolen recently from a Sebastopol area home, Raasch said.

The meth found in the car and at the storage locker was worth about $150,000 if sold on the street, sheriff's Lt. Dennis O'Leary said. The heroin had a street value of about $6,600, he said.

The storage unit was rented by Sandra Rubalcava, 32, of Santa Rosa, whom Raasch described as a friend of Jimenez.

Detectives arrested her Friday on suspicion of possessing the drugs for sale, conspiracy and possessing stolen property. She was booked into the Sonoma County Jail in lieu of $100,000 bail and was released Saturday after posting bail, according to booking records.

Detectives are seeking additional charges against Jimenez involving the drugs and guns found at the storage locker, said Raasch.

Jimenez served a two-year prison sentence involving methamphetamine possession and was then deported because he was in the United States illegally, Raasch said.

He was stopped Wednesday while driving on erratically on Petrified Forest Road in northeast Santa Rosa.

Jimenez remained in jail Monday. He was being held on about $100,000 bail, but also wasn't eligible for a bail release due to an immigration investigation.