Two loud explosions startled a Penn Valley neighborhood when Nevada County narcotics officers set off "flash-bangs" before searching the Siesta Drive home of a man suspected of selling drugs.
But what detectives found buried in Michael Todd Allgeier's backyard Thursday - including a machine gun, cash and drugs - would have really rocked the neighbors.
Officers from the Nevada County Sheriff's Narcotics Task Force and the Special Enforcement Detail Team used the explosive distractions at the house on the 18000 block of Siesta Drive because they believed Allgeier was armed and he was known to carry weapons at all times, said Sheriff's Sgt. Bill Smethers.
But the only person in the residence at the time was Allgeier's sister, Molly Ruth Allgeier, 21.
Molly Allgeier was arrested on suspicion of possession of a controlled substance and drug paraphernalia. She was booked into the county jail and released on $22,000 bail.
Detectives remained in the neighborhood and spotted Michael Allgeier in a vehicle with two other people. Tanya Michelle Cronan, of Penn Valley, was arrested on suspicion of being under the influence of a controlled substance and possession of drug paraphernalia. She was booked into jail and released on $2,000 bail.
The other passenger in the vehicle was Peter James Kreidler, 26, also of Penn Valley. Kreidler was patted down and "at least eight" knives were found on him, Smethers said.
"He had one in a plastic sheath on his belt, a 2-and-a-half-inch gutting knife with a curved, serrated edge," Smethers added. "He had them everywhere. The deputy kept pulling them out. He had one shaped like a credit card shoved in with his money in his wallet."
Kreidler was arrested on suspicion of being under the influence of a controlled substance and possession of certain weapons. He was in jail Friday in lieu of $11,000 bail.
Surveillance in back yard
After arresting Michael Allgeier, detectives returned to the residence and continued to search, Smethers said.
"We found multiple PVC pipe contraptions in the garage, ranging from 4 inches to 12 inches long, with screw-on ends," he said.
"They were water-tight, and we suspected they were used to stash items."
Officers began searching the backyard and found a number of the pipes hidden throughout the yard, Smethers said.
One pipe contained almost $5,000 in cash; another contained about 18 grams of methamphetamine in individual packages; several more pipes contained smaller amounts of meth, hydrocodone pills and packaging material.
A duct-taped bag contained a startling discovery - a broken-down World War II- or Vietnam-era 9 mm machine gun.
"It has a side-set magazine," Smethers said. "We talked to the Department of Justice, and they said it probably was Eastern European and probably was fully automatic."
A second gun, a semi-automatic .22, was found buried in the yard, and six shotguns and bolt-action rifles were found in a safe and hidden in the rafters in the garage, he said.
Allgeier allegedly told deputies he bought the two guns found in the backyard for $500.
The house and grounds were well-secured against possible intruders, Smethers said.
"There were two surveillance monitors in the bedroom and the garage," he said. "There were four cameras on the grounds and a peephole on the roll-up garage door."
Allgeier, 28, was charged with possessing a controlled substance while armed with a loaded firearm, possession of a machine gun, possession of a controlled substance for sale and being armed with a firearm while committing a felony. He was booked into jail and released on $35,000 bail.