That puts restrictions on when it can be done and requires a court-issued warrant except in an emergency that poses "immediate danger of death or great bodily injury."
The bill was granted reconsideration, so it could be brought back to the state senate floor at a later date.
"I remain hopeful that my colleagues in the Legislature continue to explore and understand the critical need for this bill to become law," Leno said in a statement.
The CTIA, the Washington, D.C.-based lobbying group that represents the telecom industry, did not respond to requests for comment.
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