(a) (1) In the case of any person committed to a state hospital or other treatment facility pursuant to Section 1026 or placed on outpatient status pursuant to Section 1604, who committed a felony on or after July 1, 1977, the court shall state in the commitment order the maximum term of commitment, and the person may not be kept in actual custody longer than the maximum term of commitment, except as provided in this section. For the purposes of this section, “maximum term of commitment” shall mean the longest term of imprisonment which could have been imposed for the offense or offenses of which the person was convicted, including the upper term of the base offense and any additional terms for enhancements and consecutive sentences which could have been imposed less any applicable credits as defined by Section 2900.5, and disregarding any credits which could have been earned pursuant to Article 2.5 (commencing with Section 2930) of Chapter 7 of Title 1 of Part 3.

(2) In the case of a person confined in a state hospital or other treatment facility pursuant to Section 1026 or placed on outpatient status pursuant to Section 1604, who committed a felony prior to July 1, 1977, and who could have been sentenced under Section 1168 or 1170 if the offense was committed after July 1, 1977, the Board of Prison Terms shall determine the maximum term of commitment which could have been imposed under paragraph (1), and the person may not be kept in actual custody longer than the maximum term of commitment, except as provided in subdivision (b). The time limits of this section are not jurisdictional.

In fixing a term under this section, the board shall utilize the upper term of imprisonment which could have been imposed for the offense or offenses of which the person was convicted, increased by any additional terms which could have been imposed based on matters which were found to be true in the committing court. However, if at least two of the members of the board after reviewing the person’s file determine that a longer term should be imposed for the reasons specified in Section 1170.2, a longer term may be imposed following the procedures and guidelines set forth in Section 1170.2, except that any hearings deemed necessary by the board shall be held within 90 days of September 28, 1979. Within 90 days of the date the person is received by the state hospital or other treatment facility, or of September 28, 1979, whichever is later, the Board of Prison Terms shall provide each person with the determination of the person’s maximum term of commitment or shall notify the person that a hearing will be scheduled to determine the term.

Within 20 days following the determination of the maximum term of commitment the board shall provide the person, the prosecuting attorney, the committing court, and the state hospital or other treatment facility with a written statement setting forth the maximum term of commitment, the calculations, and any materials considered in determining the maximum term.

(3) In the case of a person committed to a state hospital or other treatment facility pursuant to Section 1026 or placed on outpatient status pursuant to Section 1604 who committed a misdemeanor, the maximum term of commitment shall be the longest term of county jail confinement which could have been imposed for the offense or offenses which the person was found to have committed, and the person may not be kept in actual custody longer than this maximum term.

(4) Nothing in this subdivision limits the power of any state hospital or other treatment facility or of the committing court to release the person, conditionally or otherwise, for any period of time allowed by any other provision of law.

(b) (1) A person may be committed beyond the term prescribed by subdivision (a) only under the procedure set forth in this subdivision and only if the person has been committed under Section 1026 for a felony and by reason of a mental disease, defect, or disorder represents a substantial danger of physical harm to others.

(2) Not later than 180 days prior to the termination of the maximum term of commitment prescribed in subdivision (a), the medical director of a state hospital in which the person is being treated, or the medical director of the person’s treatment facility or the local program director, if the person is being treated outside a state hospital setting, shall submit to the prosecuting attorney his or her opinion as to whether or not the patient is a person described in paragraph (1). If requested by the prosecuting attorney, the opinion shall be accompanied by supporting evaluations and relevant hospital records. The prosecuting attorney may then file a petition for extended commitment in the superior court which issued the original commitment. The petition shall be filed no later than 90 days before the expiration of the original commitment unless good cause is shown. The petition shall state the reasons for the extended commitment, with accompanying affidavits specifying the factual basis for believing that the person meets each of the requirements set forth in paragraph (1).

(3) When the petition is filed, the court shall advise the person named in the petition of the right to be represented by an attorney and of the right to a jury trial. The rules of discovery in criminal cases shall apply. If the person is being treated in a state hospital when the petition is filed, the court shall notify the community program director of the petition and the hearing date.

(4) The court shall conduct a hearing on the petition for extended commitment. The trial shall be by jury unless waived by both the person and the prosecuting attorney. The trial shall commence no later than 30 calendar days prior to the time the person would otherwise have been released, unless that time is waived by the person or unless good cause is shown.

(5) Pending the hearing, the medical director or person in charge of the facility in which the person is confined shall prepare a summary of the person’s programs of treatment and shall forward the summary to the community program director or a designee, and to the court. The community program director or a designee shall review the summary and shall designate a facility within a reasonable distance from the court in which the person may be detained pending the hearing on the petition for extended commitment. The facility so designated shall continue the program of treatment, shall provide adequate security, and shall, to the greatest extent possible, minimize interference with the person’s program of treatment.

(6) A designated facility need not be approved for 72-hour treatment and evaluation pursuant to the provisions of the Lanterman-Petris-Short Act (Part 1 (commencing with Section 5000) of Division 5 of the Welfare and Institutions Code). However, a county jail may not be designated unless the services specified in paragraph (5) are provided and accommodations are provided which ensure both the safety of the person and the safety of the general population of the jail. If there is evidence that the treatment program is not being complied with or accommodations have not been provided which ensure both the safety of the committed person and the safety of the general population of the jail, the court shall order the person transferred to an appropriate facility or make any other appropriate order, including continuance of the proceedings.

(7) The person shall be entitled to the rights guaranteed under the federal and State Constitutions for criminal proceedings. All proceedings shall be in accordance with applicable constitutional guarantees. The state shall be represented by the district attorney who shall notify the Attorney General in writing that a case has been referred under this section. If the person is indigent, the county public defender or State Public Defender shall be appointed. The State Public Defender may provide for representation of the person in any manner authorized by Section 15402 of the Government Code. Appointment of necessary psychologists or psychiatrists shall be made in accordance with this article and Penal Code and Evidence Code provisions applicable to criminal defendants who have entered pleas of not guilty by reason of insanity.

(8) If the court or jury finds that the patient is a person described in paragraph (1), the court shall order the patient recommitted to the facility in which the patient was confined at the time the petition was filed. This commitment shall be for an additional period of two years from the date of termination of the previous commitment, and the person may not be kept in actual custody longer than two years unless another extension of commitment is obtained in accordance with the provisions of this subdivision. Time spent on outpatient status, except when placed in a locked facility at the direction of the outpatient supervisor, shall not count as actual custody and shall not be credited toward the person’s maximum term of commitment or toward the person’s term of extended commitment.

(9) A person committed under this subdivision shall be eligible for release to outpatient status pursuant to the provisions of Title 15 (commencing with Section 1600) of Part 2.

(10) Prior to termination of a commitment under this subdivision, a petition for recommitment may be filed to determine whether the patient remains a person described in paragraph (1). The recommitment proceeding shall be conducted in accordance with the provisions of this subdivision.

(11) Any commitment under this subdivision places an affirmative obligation on the treatment facility to provide treatment for the underlying causes of the person’s mental disorder.

(Amended by Stats. 1994, 1st Ex. Sess., Ch. 9, Sec. 1. Effective November 30, 1994.)