Whether an effective withdrawal after overt acts have been committed is a defense to the completed crime of conspiracy.
Holding
No. Once an overt act in furtherance of the unlawful agreement has occurred, later withdrawal does not erase liability for the completed conspiracy.
Reasoning
A California conspiracy consists of an agreement between two or more persons to commit a crime, accompanied by an overt act in furtherance of that agreement. The overt act need not itself be criminal, amount to an attempt, or constitute aiding and abetting; the substantive target offense also need not be completed.
The overt-act requirement supplies the conspirators’ locus poenitentiae: their opportunity to reconsider the plan, terminate it, and avoid punishment for conspiracy. Conversely, once an overt act is committed, the conspiracy offense is complete. A conspirator cannot undo the already completed crime merely by later changing course.
Withdrawal requires an affirmative, bona fide repudiation communicated to coconspirators. It can cut off liability for later crimes committed by the remaining conspirators and, in appropriate circumstances, can matter to limitations issues. But it does not relate back to negate the original unlawful agreement and overt act.
Thus, even assuming Sconce effectively told Garcia to abandon the plan, that withdrawal would not defeat the conspiracy charge. The court therefore did not need to decide whether Sconce’s communication was sufficiently clear or sufficiently broad to amount to an effective withdrawal.
The trial court’s policy concern—encouraging conspirators to abandon criminal schemes—did not permit it to create a complete post-overt-act withdrawal defense. California’s settled rule remains controlling, and any broader renunciation defense, such as the Model Penal Code recognizes when a defendant thwarts the conspiracy, must come from the Legislature.