(a) Petition for commitment. A petition for commitment to a facility may be filed by the District of Columbia pursuant to D.C. Code § 7-1303.04 (b-1) (2003 Supp.) for an individual charged with a crime of violence or sex offense, as these terms are defined in D.C. Code § 7-1301.03 (2003 Supp.), and found incompetent based on mental retardation and not likely to regain competence to stand trial or participate in sentencing or transfer proceedings. The petition shall be filed within 30 days of said finding. The 30 day time period may be extended by the Court upon a showing of extraordinary cause. The District of Columbia shall file the petition and serve a copy upon the respondent, respondent's counsel in his or her criminal case, respondent's counsel in his or her mental retardation case, respondent's advocate, if appointed, respondent's guardian ad litem, if appointed, respondent's parent or guardian, the Office of the United States Attorney, and the assigned judicial officer in the criminal case. The petition shall contain the following information:
(1) The name, date of birth, and home address of the respondent;(2) The criminal charges on which the respondent has been found to be mentally incompetent;(3) A statement that the respondent is or is believed to be mentally retarded and in need of commitment, including facts demonstrating why respondent is likely to cause injury to others by reason of mental retardation;(4) The date respondent was found incompetent and not likely to regain competence in the criminal case; and(5) The current placement and legal status of the respondent, including prior or current commitments or admissions involving the respondent.