(1) Any facility receiving a person pursuant to RCW 71.05.150 or 71.05.153 shall require the designated crisis responder to prepare a petition for initial detention stating the circumstances under which the person's condition was made known and stating that there is evidence, as a result of his or her personal observation or investigation, that the actions of the person for which application is made constitute a likelihood of serious harm, or that he or she is gravely disabled, and stating the specific facts known to him or her as a result of his or her personal observation or investigation, upon which he or she bases the belief that such person should be detained for the purposes and under the authority of this chapter.
(2)(a) If a person is involuntarily placed in an evaluation and treatment facility, secure withdrawal management and stabilization facility, or approved substance use disorder treatment program pursuant to RCW 71.05.150 or 71.05.153, on the next judicial day following the initial detention, the designated crisis responder shall file with the court and serve the designated attorney of the detained person the petition or supplemental petition for initial detention, proof of service of notice, and a copy of a notice of emergency detention.
(b) If the person is involuntarily detained at an evaluation and treatment facility, secure withdrawal management and stabilization facility, or approved substance use disorder treatment program in a different county from where the person was initially detained, the facility or program may file with the court and serve the designated attorney of the detained person the petition or supplemental petition for initial detention, proof of service of notice, and a copy of a notice of emergency detention at the request of the designated crisis responder.