K.G.

*168 Opinion

—Petitioners K.G. and Donna H. were determined to be gravely disabled persons under the Lanterman-Petris-Short Act (LPS Act) (Well. & Inst. Code, § 5000 et seq.) 1 and were subject to conservatorships. Orders establishing the conservatorships divested them of the right to make their own decisions on medical treatment for their grave disabilities, including involuntary administration of antipsychotic medication. (§ 5357, subd. (d); hereafter, section 5357(d).) Together with the California Association of Mental Health Patients’ Rights Advocates (CAMHPRA; collectively, Petitioners), 2 they filed a petition for a writ of mandate and declaratory relief against their conservator, the Marin County Public Guardian (Public Guardian), alleging that the Public Guardian had a “customary practice” of seeking and obtaining conservatorship orders imposing such a legal disability without an appropriate judicial determination of personal decisional incapacity.

The Public Guardian revised the pleading forms used in conservatorship proceedings, and the original conservatorships of both individual petitioners expired. The trial court found the petition to be moot and dismissed it. We…