The method of execution is injection.

The method of execution is injection. The prisoner can eventually choose the gas chamber. The sentence is determined by a jury. Death row is located at San Quentin (Women: Chowchilla). As for the clemency process, the Governor has sole authority to grant clemency.
On December 15, 2006, US District Judge Jeremy Fogel ruled that California's method of lethal injection for executions was unconstitutional. Fogel ruled the state's use of lethal injection, a combination of chemicals meant to sedate, end breathing, and stop the heart creates a "risk that an inmate will suffer pain so extreme that it offends the Eighth Amendment,'' which prohibits cruel and unusual punishment.
California's “implementation of lethal injection is broken, but it can be fixed,'' Fogel said in the ruling. With its ruling, Judge Fogel temporary halted all the executions.