California Code, Code of Civil Procedure - CCP § 206

(a) Prior to discharging the jury from the case, the judge in a criminal action shall inform the jurors that they have an absolute right to discuss or not to discuss the deliberation or verdict with anyone. The judge shall also inform the jurors of the provisions set forth in subdivisions (b), (d), and (e).

(b) Following the discharge of the jury in a criminal case, the defendant, or his or her attorney or representative, or the prosecutor, or his or her representative, may discuss the jury deliberation or verdict with a member of the jury, provided that the juror consents to the discussion and that the discussion takes place at a reasonable time and place.

(c) If a discussion of the jury deliberation or verdict with a member of the jury pursuant to subdivision (b) occurs at any time more than 24 hours after the verdict, prior to discussing the jury deliberation or verdict with a member of a jury pursuant to subdivision (b), the defendant or his or her attorney or representative, or the prosecutor or his or her representative, shall inform the juror of the identity of the case, the party in that case which the person represents, the subject of the interview, the absolute right of the juror to discuss or not discuss the deliberations or verdict in the case with the person, and the juror's right to review and have a copy of any declaration filed with the court.

(d) Any unreasonable contact with a juror by the defendant, or his or her attorney or representative, or by the prosecutor, or his or her representative, without the juror's consent shall be immediately reported to the trial judge.

(e) Any violation of this section shall be considered a violation of a lawful court order and shall be subject to reasonable monetary sanctions in accordance with Section 177.5 of the Code of Civil Procedure.

(f) Nothing in the section shall prohibit a peace officer from investigating an allegation of criminal conduct.

(g) Pursuant to Section 237, a defendant or defendant's counsel may, following the recording of a jury's verdict in a criminal proceeding, petition the court for access to personal juror identifying information within the court's records necessary for the defendant to communicate with jurors for the purpose of developing a motion for new trial or any other lawful purpose. This information consists of jurors' names, addresses, and telephone numbers. The court shall consider all requests for personal juror identifying information pursuant to Section 237.