"They've got some good, courageous law enforcement officers in Mexico, " said Santa Cruz County Sheriff Tony Estrada.

NPR: Ariz. Mom Not Giving Up On Mexico, Despite Arrest

Santa Cruz County Sheriff Tony Estrada said the validated portion of the law marked "very little change" for his department.

CNN: STORY HIGHLIGHTS

When backup arrived, the suspect had disappeared, prompting officers to set up a perimeter, Santa Cruz County Sheriff Phil Wowak said.

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At its southern end, the district has lost the long tail that had dangled all the way to rural Gilroy and taken in some remote Santa Cruz County turf along the way.

CNN: District Profile: California -- 14th District

In Santa Cruz, an affluent county south of the city, it has accelerated.

ECONOMIST: California