California Code, Penal Code - PEN § 784

(a) For forcibly and without lawful authority seizing and confining another, or inveigling or kidnapping another, with intent, against his or her will, to cause him or her to be secretly confined or imprisoned in this state, or to be sent out of the state, or from one county to another, or to be sold as a slave, or in any way held to service;

(b) For inveigling, enticing, or taking away any person for the purpose of concubinage or prostitution, as defined in subdivision (b) of Section 647;

Is in any competent court within the jurisdictional territory in which the offense was committed, or in the jurisdictional territory out of which the person upon whom the offense was committed was taken or within the jurisdictional territory in which an act was done by the defendant in instigating, procuring, promoting, or aiding in the commission of the offense, or in abetting the parties concerned therein.