Four guns seized from a gang member's home during a large police crackdown Wednesday had been reported stolen, Lodi police said.
On Thursday investigators were still sorting through evidence and items seized during visits to 120 homes, the second phase of an operation that started last week.
They made a total of 32 arrests Wednesday, in addition to 28 made last weekend during the operation dubbed "Operation Safe Summer."
Six guns, some of which are illegal to own, were found during a search in Thornton, said Lodi Police Sgt. Bill Alexander. One handgun had been stolen in Galt, and three other guns were stolen from a Thornton home, according to Detective Steve Maynard.
Investigators said the guns were found in the possession of Fernando Martinez, 23, a documented Sureno gang member with previous weapons and drug convictions. Officers also seized crystal methamphetamine, $520 in cash, a bullet-proof vest, batons and a baseball bat with gang writing.
He was booked into the county jail following Wednesday's arrest and is being held without bail.
That was one of six felony arrests during Thursday's operation. Another 16 people were arrested on misdemeanor charges, and 10 were being held on immigration violations.
The arrests included four drug cases and four weapons cases — firearms seized at three locations and brass knuckles found at a fourth location, Alexander said. Two people were arrested on parole violations. One was a documented gang member and others had probation violations or were wanted on warrants.
Additionally, a computer found in a probationer's home contained personal information belonging to other people, and investigators were still working on that case to determine if victims' identities had been stolen, Alexander said.
A total of 81 officers from multiple agencies took to the streets Wednesday. Alexander said Lodi officers were not paid overtime; detectives worked later shifts and others were already scheduled to work that day.
Last week's first phase of the operation included 70 officers from area law enforcement agencies, and it resulted in 28 arrests during a check of 80 locations.
Of those arrested during the first sweep, 19 were felony arrests and nine were misdemeanor. Police also opened four drug cases. They found a firearm at one home and brass knuckles at another, Alexander said. Eight of those people arrested were documented gang members.
The mass operation isn't the last of its kind, Alexander said, declining to say when they might act again. In the meantime, he said detectives were following up leads developed during the operation and finishing reports on the arrests.